CN220915414U - Vibration sounding monomer, vibration sounding module and electronic equipment - Google Patents

Abstract

The utility model discloses a vibration sound-generating unit, a vibration sound-generating module and an electronic device. The vibration sound-generating unit includes a fixed component, a first vibration system and a second vibration system. The fixed component includes a bracket and a magnetic circuit system fixed to the bracket. The magnetic circuit system has a magnetic gap. The first vibration system and the second vibration system are respectively arranged on opposite sides of the fixed component and are respectively fixed to opposite ends of the fixed component. The first vibration system vibrates along a first direction, and the second vibration system vibrates along a second direction perpendicular to the first direction. The second vibration system includes an elastic connector and a vibrator component. The two ends of the elastic connector are respectively connected to the vibrator component and the second end of the fixed component. The vibrator component includes a counterweight and a driving coil arranged on the counterweight. The magnetic circuit system and the driving coil are correspondingly arranged to drive the vibrator component to vibrate. According to the vibration sound-generating unit of the utility model, the structure is simple and compact, modular and standardized design can be realized, and the applicability is strong.

Description

Vibration sound unit, vibration sound module and electronic equipment

Technical Field

The utility model relates to the field of electroacoustic equipment, in particular to a vibration sound-generating monomer, a vibration sound-generating module and an electronic device.

Background technique

Smart terminal devices, especially mobile phones, usually need to provide both audio experience and vibration tactile feedback experience, where the audio experience comes from the sound unit and the vibration tactile feedback experience comes from the vibration unit.

In the related art, a vibration sound module in which a sound unit and a vibration unit are integrated is proposed. The sound unit and the vibration unit are separately arranged to form independent control units, and the sound unit and the vibration unit are stacked and arranged in the shell of the vibration sound module. Although the above structure can realize the integration of the sound unit and the vibration unit, the assembly space occupied by the above vibration sound module is too large, thereby affecting the miniaturization and lightweight design of the terminal device.

Moreover, the two ends of the elastic connecting part of the above-mentioned vibration and sound module are respectively connected to the module shell and the vibrator assembly. When the model of the vibration and sound module changes, the vibration unit needs to adjust the structural design of the elastic connecting part according to the change of the vibration and sound module, and the modular and standardized design of the vibration and sound unit cannot be realized, thereby reducing production efficiency.

Utility Model Content

The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a vibration sound-generating unit, which has the advantages of simple and compact structure and can realize modular and standardized design.

The utility model also provides a vibration sound-generating module having the vibration sound-generating monomer.

The utility model also provides an electronic device with the vibration sound generating module.

According to the first aspect of the present invention, the vibration sound-generating unit includes: a fixed component, the fixed component 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 arranged on the magnetic yoke, the side magnetic part is arranged on the outside of the central magnetic part and is spaced from the central magnetic part to define a magnetic gap; a first vibration system and a second vibration system, the first vibration system and the second vibration system are respectively arranged on opposite sides of the fixed component and are respectively fixed to opposite ends of the fixed component, wherein the first vibration system vibrates along a first direction, the first vibration system is fixed to a 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 a vibrator assembly, the two ends of the elastic connector are respectively connected to the vibrator assembly and the fixed component The second end of the member is connected, the vibrator assembly includes a driving coil, and the magnetic circuit system is correspondingly arranged with the driving coil to drive the vibrator assembly to vibrate; wherein, the edge magnetic part includes an edge magnet, the central magnetic part includes a central magnetic conductive plate, a plurality of first sub-center magnets spaced apart along the second direction, and second sub-center magnets arranged on both sides of the third direction of the plurality of first sub-center magnets, the third direction is perpendicular to the first direction and the second direction respectively, a plurality of first sub-center magnets and a second sub-center magnet are connected to the central magnetic conductive plate on one side away from the second vibration system, and magnetization directions of two adjacent first sub-center magnets are opposite, the driving coil has two long sides arranged oppositely, and along the first direction, the two long sides are respectively arranged oppositely to the two adjacent first sub-center magnets, the magnetic conductive yoke includes a main body and a hollow hole arranged in the main body, the edge magnet and the second sub-center magnet are both arranged in the main body, and along the first direction, the hollow hole is at least partially arranged oppositely to the driving coil.

According to the vibration sound-generating unit of the first embodiment of the utility model, a magnetic gap corresponding to the voice coil in the first vibration system is provided in the magnetic circuit system, and the magnetic circuit system is also provided corresponding to the driving coil of the second vibration system, thereby improving the magnetic field utilization rate of the magnetic circuit system, saving a set of magnetic circuit systems, and reducing production costs. In addition, the assembly space occupied by a set of magnetic circuit systems can be saved, thereby satisfying the miniaturization and lightweight design of the vibration sound-generating unit. Moreover, the two ends of the elastic connector in the second vibration system are respectively connected to the vibrator assembly and the fixed assembly, thereby, the vibration sound-generating unit can be formed into an independent functional unit, which can realize the modularization and standardized design of the vibration sound-generating unit, and greatly improve the applicability of the vibration sound-generating unit.

According to some embodiments of the present invention, two ends of the elastic connector are respectively connected to the vibrator 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.

According to some embodiments of the present invention, two ends of the elastic connecting member are respectively connected to the vibrator assembly and the magnetic circuit system.

According to some embodiments of the utility model, the edge magnet portion also includes a side magnetic conductive plate arranged on the side of the edge magnet away from the second vibration system, the side magnetic conductive plate has a mounting portion extending to the second end of the fixed component, and the elastic connecting member is fixedly connected to the mounting portion; or, the elastic connecting member is fixedly connected to the side of the magnetic circuit system.

According to some embodiments of the present invention, the elastic connecting member is connected to the magnetic yoke.

In some embodiments of the present invention, the magnetic yoke includes a main body and support frames arranged 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 vibrator assembly.

In some embodiments of the present invention, the main body is formed into a square structure, and the number of the support frames is two and they are respectively arranged at diagonal positions of the main body.

In some embodiments of the present invention, the elastic connecting member 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 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 block.

According to some embodiments of the utility model, the side magnets, the first sub-center magnet and the second sub-center magnet are all magnetized along the first direction, and along the second direction, the magnetization directions between adjacent side magnets and the first sub-center magnets and between two adjacent first sub-center magnets are opposite, and along the third direction, the magnetization directions between adjacent side magnets and the second sub-center magnets are opposite.

According to some embodiments of the present invention, projections of the plurality of first sub-center magnets along the first direction are all located inside the edge of the hollow hole.

In some embodiments of the present invention, along the first direction, a plurality of the first sub-center magnets all extend into the hollow hole.

According to 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.

The vibration sound-generating module according to the second aspect of the embodiment of the utility model comprises a shell and a vibration sound-generating unit according to the above embodiment of the utility model, wherein the vibration sound-generating unit is arranged in the shell, and the first end of the fixing component is connected to the inner wall of the shell.

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

The electronic device according to the embodiment of the third aspect of the utility model comprises the vibration sound generating module according to the above embodiment of the utility model.

According to the electronic device of the third aspect of the embodiment of the utility model, by setting the above-mentioned vibration sound module, the structure design of the vibration sound module is compact, the assembly space occupied is small, and it also has good sound effect and vibration effect, so that it can meet the requirements of lightweight design of electronic equipment, and can also make the electronic equipment have both good sound quality and vibration feedback effect, thereby improving the product market competitiveness of the electronic equipment.

Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS

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

FIG1 is a schematic diagram of an explosion structure of a vibration sound-generating unit according to an embodiment of the utility model;

FIG2 is a schematic diagram of an explosion structure of a vibration sound-generating unit according to another embodiment of the utility model;

FIG3 is a schematic diagram of an explosion structure of a vibration sound-generating unit according to another embodiment of the utility model;

4 is a vertical cross-sectional view of a vibration sound-generating unit along a second direction according to an embodiment of the present utility model;

5 is a vertical cross-sectional view of a vibration sound-generating unit along a second direction according to another embodiment of the present utility model;

6 is a vertical cross-sectional view of a vibration sound-generating unit along a second direction according to yet another embodiment of the present utility model;

7 is a vertical cross-sectional view of a vibration sound-generating unit along a third direction according to an embodiment of the present utility model;

8 is a vertical cross-sectional view of a vibration sound-generating unit along a third direction according to another embodiment of the present utility model;

9 is a vertical cross-sectional view of a vibration sound-generating unit along a third direction according to yet another embodiment of the present utility model;

FIG10 is a schematic diagram of the structure of a vibration sound-generating unit according to an embodiment of the present utility model at a first viewing angle;

FIG11 is a schematic structural diagram of a vibration sound-generating unit according to an embodiment of the present utility model at another viewing angle;

FIG12 is a schematic diagram of the matching structure of the bracket and the elastic connector according to an embodiment of the present utility model;

13 is a vertical cross-sectional view of a vibration sound-generating unit along a second direction according to an embodiment of the present utility model;

FIG. 14 is a schematic structural diagram of a vibration sound-generating module according to an embodiment of the present invention.

Reference numerals:

Vibration sound unit 100,

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 plate 113, support part 1131, extension part 1132, side magnetic part 12, side magnet 121, side magnetic plate 122, first plate 1221, second plate 1222, recessed part 122a, magnetic yoke 13, main body 131, hollow hole 132, support frame 133,

The first vibration system 2, the diaphragm assembly 21, the diaphragm 211, the dome 212, the voice coil 22, the first sub-voice coil 22a, the second sub-voice coil 22b,

The second vibration system 3, the elastic connecting member 31, the first elastic connecting part 311, the second elastic connecting part 312, the vibrator assembly 32, the weight block 321, the assembly groove 321a, the driving coil 322, the long side 3221, the short side 3222,

Bracket 4, first mounting portion 41,

Basin rack 5,

Vibration sound module 200, shell 201.

Detailed ways

The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar components or components with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

The vibration sound-generating unit 100 according to the first embodiment of the utility model is described in detail below with reference to FIGS. 1 to 13 . The vibration sound-generating unit 100 may be a speaker unit having both sound-generating function and vibration function.

As shown in FIGS. 1-3 , the vibration sound-generating unit 100 according to the first embodiment of the utility model includes: a fixing component, a first vibration system 2 and a second vibration system 3 .

The fixed component may include a bracket 4 and a magnetic circuit system 1 fixed to the bracket 4, and the magnetic circuit system 1 has a magnetic gap 1a. The first vibration system 2 and the second vibration system 3 are respectively arranged on opposite sides of the fixed component and are respectively fixed to opposite ends of the fixed component. The first vibration system 2 can vibrate along a first direction, and the first vibration system 2 is fixed to the first end of the fixed 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 a vertical z direction, that is, the voice coil 22 may reciprocate along a vertical direction under the drive of the magnetic field force, thereby driving the diaphragm assembly 21 to vibrate and sound, and realizing the sound-generating function of the vibration sound-generating monomer 100. In a specific example of the present utility model, the diaphragm assembly 21 may include a diaphragm 211 and a dome 212, the diaphragm 211 is connected to the bracket 4 of the vibration sound-generating monomer 100, the dome 212 is arranged 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.

As shown in Figures 4 to 6, the second vibration system 3 can vibrate along a second direction perpendicular to the first direction. The second vibration system 3 can include an elastic connector 31 and a vibrator assembly 32. The two ends of the elastic connector 31 are respectively connected to the vibrator assembly 32 and the second end of the fixed assembly. The vibrator assembly 32 includes a counterweight block 321 and a driving coil 322 arranged on the counterweight block 321. The magnetic circuit system 1 and the driving coil 322 are correspondingly arranged to drive the vibrator assembly 32 to vibrate.

Specifically, the first vibration system 2 can vibrate in the vertical z direction, and the second vibration system 3 can vibrate in the horizontal x direction. The magnetic circuit system 1 is provided with a magnetic gap 1a corresponding to the first vibration system 2, and the end of the voice coil 22 in the first vibration system 2 away from the diaphragm assembly 21 can be inserted into the magnetic gap 1a, thereby, the magnetic circuit system 1 can drive the first vibration system 2 to vibrate in the first direction. In addition, the magnetic circuit system 1 is also arranged corresponding to the driving coil 322 of the second vibration system 3, that is, the magnetic circuit system 1 can also drive the driving coil 322 to drive the counterweight 321 to vibrate in the second direction, thereby realizing the second direction vibration of the second vibration system 3.

Among them, 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 fixed assembly. In other words, the other end of the elastic connector 31 can be connected to the bracket 4, and can also be connected to the magnetic circuit system 1. It should be noted that the bracket 4 can be a separate component independently provided from the magnetic circuit system 1, and the bracket can also be formed by extending a part of the magnetic circuit system 1, that is, the bracket can also be formed as an integral part with the magnetic circuit system 1, or the bracket 4 is formed by a part extending from the magnetic circuit system 1 and a plastic material part (basin frame 5) injected onto the magnetic circuit system. It can be selected and set according to actual design and use requirements, and the utility model does not impose specific restrictions on this.

For example, as shown in FIG12 , the magnetic circuit system 1 may include a side magnetic part 12, and the side magnetic conductive plate 122 of the side magnetic part 12 includes a first plate body 1221 extending along the second direction and a second plate body 1222 extending along the first direction. The basin frame 5 of the vibration sound-generating monomer 100 is a plastic material part, and the basin frame 5 and the side magnetic conductive plate 122 are integrally injection-molded, and the basin frame 5 is connected to the second plate body 1222. The basin frame 5 of the vibration sound-generating monomer 100 and the side magnetic conductive plate 122 are jointly formed into a bracket 4. Among them, 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 with the bracket 4 of the vibration sound-generating monomer 100.

It can be understood that, usually a part of the magnetic field of the magnetic circuit system 1 of a loudspeaker is used to drive the voice coil 22 to vibrate and make sound. The utility model saves a set of magnetic circuit system 1 and reduces production costs 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 corresponding to the driving coil 322 of the second vibration system 3. In addition, the assembly space occupied by a set of magnetic circuit system 1 can also be saved, thereby meeting the miniaturization and lightweight design of the vibration sound-generating unit 100.

Moreover, the two ends of the elastic connecting member 31 in the second vibration system 3 are respectively connected to the vibrator assembly 32 and the fixing assembly, and the vibrator assembly 32 and the fixing assembly are both components of the vibration and sound-generating unit 100. Thus, the vibration and sound-generating unit 100 can be formed into an independent functional unit, that is, when the vibration and sound-generating unit 100 can be fixed in the shell 201 of the vibration and sound-generating module 200 as a complete and independent functional unit, when the model of the vibration and sound-generating module 200 changes, it is only necessary to adjust the size and shape of its shell 201 without changing the vibration and sound-generating unit 100. Thus, the modular and standardized design of the vibration and sound-generating unit 100 can be realized, which greatly improves the applicability of the vibration and sound-generating unit 100.

According to the vibration sound-generating monomer 100 of the first embodiment of the utility model, a magnetic gap 1a corresponding to the voice coil 22 in the first vibration system 2 is provided in the magnetic circuit system 1, and the magnetic circuit system 1 is also provided corresponding to the driving coil 322 of the second vibration system 3, thereby improving the magnetic field utilization rate of the magnetic circuit system 1, saving a set of magnetic circuit systems 1, and reducing production costs. In addition, the assembly space occupied by a set of magnetic circuit systems 1 can be saved, thereby satisfying the miniaturization and lightness design of the vibration sound-generating monomer 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 fixed assembly, thereby, the vibration sound-generating monomer 100 can be formed into an independent functional unit, and the modularization and standardized design of the vibration sound-generating monomer 100 can be realized, which greatly improves the applicability of the vibration sound-generating monomer 100.

As shown in Figure 12, according to some embodiments of the utility model, 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, and the elastic connector 31 is fixedly connected to the first mounting portion 41. Thus, the vibration sound 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 driving coil 322 can drive the counterweight 321 to vibrate smoothly along the second direction.

According to some embodiments of the utility model, the two ends of the elastic connector 31 can be connected to the vibrator assembly 32 and the magnetic circuit system 1 respectively, thereby not only realizing the modularization and standardized design of the vibration sound-generating unit 100, but also simplifying the structural design of the vibration sound-generating unit 100, and the magnetic circuit system 1 can suspend the vibrator assembly 32 by connecting with the elastic connector 31.

As shown in Figures 4 to 6, according to some embodiments of the utility model, the magnetic circuit system 1 may include a magnetic yoke 13 and a central magnetic portion 11 and a side magnetic portion 12 respectively arranged on the magnetic yoke 13, the side magnetic portion 12 is arranged on the outer side of the central magnetic portion 11 and is spaced apart from the central magnetic portion 11 to define a magnetic gap 1a, and the side of the voice coil 22 away from the diaphragm assembly 21 can be inserted into the magnetic gap 1a, whereby, under the action of the magnetic flux lines in the magnetic gap 1a, the voice coil 22 can drive the diaphragm assembly 21 to vibrate along a first direction.

In some embodiments of the utility model, the edge magnetic portion 12 may include an edge magnet 121 and an edge magnetic conductive plate 122 arranged on the side of the edge magnet 121 away from the second vibration system 3, the edge magnetic conductive plate 122 has a second mounting portion (not shown) extending to the second end of the fixed component, and the elastic connecting member 31 is fixedly connected to the second mounting portion. Therefore, the edge magnetic conductive plate 122 can not only play the role of gathering the magnetic lines of force in the edge magnetic portion 12, but also, the edge magnetic conductive plate 122 can also be used to fix the elastic connecting member 31, thereby simplifying the structural design of the vibration sound-generating unit 100 and making the structural design of the vibration sound-generating unit 100 more compact.

In other embodiments of the utility model, 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. The elastic connector 31 can also be fixedly connected to the side of the side magnetic conductive plate 122. This can simplify the structural design of the vibration sound-generating unit 100 and make the structural design of the vibration sound-generating unit 100 more compact.

As shown in Figures 10 and 11, 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 arranged on the side of the magnetic circuit system 1 close to the vibrator 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.

In some embodiments of the utility model, the magnetic yoke 13 may include a main body 131 and a support frame 133 arranged at both ends of the main body 131, one end of the elastic connecting member 31 is connected to the support frame 133, and the other end of the elastic connecting member 31 is connected to the counterweight block 321, thereby, the main body 131 can be used to support the central magnetic portion 11 and the side magnetic portion 12, and the support frame 133 can be used to support the connecting elastic connecting member 31, and the structural design is relatively reasonable.

In the specific examples shown in Figures 10 and 11, the support frame 133 can be formed into a plate-like structure, one end of the support frame 133 is connected to the main body 131, and the other end of the support frame 133 extends along the first direction toward the direction away from the main body 131, thereby, the support frame 133 can define the installation space with the elastic connector 31, which is convenient for the installation and fixation of the elastic connector 31. Optionally, the support frame 133 and the main body 131 can be formed into an integrally formed structure, such as an integral stamping part, etc., and the support frame 133 and the main body 131 can also be formed into a split structure, and the support frame 133 and the main body 131 can be fixed together by welding. Optionally, the support frame 133 and the main body 131 can be composed of the same material, and the support frame 133 and the main body 131 can also be formed of different materials. For example, the main body 131 can be made of a high magnetic permeability material (such as a cobalt alloy material), and the support frame 133 can be composed of a metal material, a plastic material, etc.

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, which are respectively arranged at diagonal positions of the main body 131, so that the two elastic connecting members 31 can be formed into corresponding installation structures, so that the force of the vibrator assembly 32 is more balanced, thereby improving the operating stability of the second vibration system 3.

As shown in Figures 10 and 11, in one embodiment of the utility model, the elastic connecting member 31 is provided with a first elastic connecting portion 311 extending along the second direction and a second elastic connecting portion 312 extending along the third direction, and the third direction is perpendicular to the first direction and the second direction, respectively, wherein 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 block 321.

Specifically, the first direction may be a vertical z direction, the second direction may be a horizontal x direction, and the third direction may be a horizontal y direction, and the third direction is perpendicular to the first direction and the second direction, respectively. Each elastic connector 31 includes a first elastic connector 311 and a second elastic connector 312 arranged at an angle, the first elastic connector 311 extends along the second direction, the second elastic connector 312 extends along the third direction, one of the first elastic connector 311 and the second elastic connector 312 is connected to the support frame 133, and the other of the first elastic connector 311 and the second elastic connector 312 is connected to the counterweight 321. Thus, the first elastic connector 311 and the second elastic connector 312 can both buffer the vibrator assembly 32, thereby ensuring the smooth operation of the second vibration system 3.

As shown in Figure 13, in some embodiments of the utility model, the magnetic circuit system 1 may include a central magnetic portion 11 and a side magnetic portion 12, the side magnetic portion 12 is arranged on the outside of the central magnetic portion 11 and is spaced apart from the central magnetic portion 11 to define a magnetic gap 1a, the central magnetic portion 11 includes a central magnet 110, and the side magnetic portion 12 includes a side magnet 121. The driving coil 322 may have two long sides 3221 arranged opposite to each other, and along the first direction, the two long sides 3221 are respectively arranged opposite to the central magnet 110 and the side magnet 121. Therefore, the central magnetic portion 11 and the side magnetic portion 12 can not only form a magnetic gap 1a corresponding to the first vibration system 2, but also the magnetic circuit system 1 can also act on the driving coil 322 in the second vibration system 3 at the same time, thereby realizing the structural design that the first vibration system 2 and the second vibration system 3 share a set of magnetic circuit systems 1.

As shown in FIG. 4-FIG. 5, in some embodiments of the utility model, the central magnetic part 11 includes a plurality of first sub-center magnets 111 spaced apart along the second direction, the magnetization directions of two adjacent first sub-center magnets 111 are opposite, and the driving coil 322 has two long sides 3221 arranged opposite to each other, and along the first direction, the two long sides 3221 are arranged opposite to the two adjacent first sub-center magnets 111. Specifically, the magnetic field utilization rate of the central magnetic circuit part of the speaker is usually low. The utility model arranges a plurality of first sub-center magnets 111 spaced apart along the second direction in the central magnetic part 11, and the two long sides 3221 of the driving coil 322 are arranged opposite to the two adjacent first sub-center magnets 111 along the first direction, thereby the magnetic field of the central magnetic part 11 with low utilization rate in the first vibration system 2 can be used as the magnetic field of the second vibration system 3, thereby improving the magnetic field utilization rate of the central magnetic part 11, saving a set of magnetic circuit system 1, and reducing production costs.

As shown in FIG. 4-FIG. 5, in some embodiments of the present utility model, there are at least three first sub-center magnets 111, and two adjacent first sub-center magnets 111 are arranged at intervals to form a spacer 1b, the number of driving coils 322 is the same as the number of spacers 1b, and the center hole of the driving coil 322 is arranged in a one-to-one correspondence with the spacer 1b. Specifically, the driving coil 322 can be formed into a flat shape, and the two long sides 3221 of the driving coil 322 are arranged on opposite sides of the center hole. The number of the driving coils 322 is the same as the number of the spacers 1b, which can ensure that a driving coil 322 is provided between two adjacent first sub-center magnets 111. Therefore, through the above arrangement, each driving coil 322 corresponds to a pair of first sub-center magnets 111 arranged at intervals, and the first long side 3221 and the second long side 3221 can fully cut the magnetic flux lines, thereby improving the vibration effect of the vibrator assembly 32.

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

Optionally, along the second direction, the gap between two adjacent first sub-center magnets 111 is close to zero or equal to zero, that is, the width of the spacer 1b is close to zero or equal to zero. In other words, the two adjacent first sub-center magnets 111 can be arranged close to each other. In the case where the gap between two adjacent first sub-center magnets 111 is equal to zero, the spacer 1b between the two can be the contact surface/point/line between the two adjacent first sub-center magnets 111. It can be understood that although the two adjacent first sub-center magnets 111 are arranged close to each other, due to the existence of assembly errors and material errors, a small gap (spacer 1b) will exist between the two adjacent first sub-center magnets 111. In another specific example of the utility model, along the second direction, the width of the spacer 1b can be 0.05mm±0.02mm.

Compared with the case where two adjacent first sub-center magnets 111 are arranged close to each other with a wider gap, the size and volume of the magnets can be increased, thereby improving the magnetic field strength.

In addition, since magnets with different magnetization directions are usually assembled separately, for example, in the case of three first sub-center magnets 111, the two first sub-center magnets 111 at the two end positions are first fixed, and then the first sub-center magnet 111 at the middle position is inserted into the assembly space defined between the two first sub-center magnets 111 at the two end positions. Therefore, when the adjacent first sub-center magnets 111 are arranged close to each other, there is no need to accurately position the first sub-center magnet 111 at the middle position, which simplifies the assembly process of the central magnetic part 11 and improves the assembly efficiency. Moreover, since the three first sub-center magnets 111 are arranged close to each other, when the first sub-center magnets 111 installed later are assembled, the glue used for fixing will overflow to the surrounding side of the magnet, and then overflow into the tiny gap between two adjacent first sub-center magnets 111, so that the two adjacent first sub-center magnets 111 can be bonded together. As a result, the three first sub-center magnets 111 can be formed into a whole by bonding, which greatly improves the structural firmness of the central magnetic part 11. When the product falls or collides, the first sub-center magnet 111 is not easy to loosen or fall off.

In a specific example of the present invention, the driving coil 322 may also include two short sides 3222 arranged opposite to each other, and the two short sides 3222 are arranged 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, so that the two short sides 3222 and the two long sides 3221 cooperate to define a center hole, and along the first direction, each center hole is arranged one by one corresponding to each spacer 1b.

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

Optionally, along the second direction, the gap between two adjacent first sub-center magnets 111 is close to zero or equal to zero, that is, the width of the spacing portion 1b is close to zero or equal to zero. In other words, the two adjacent first sub-center magnets 111 can be arranged close to each other, in which case, the spacing portion 1b between the two can be the contact surface/point/line between the two adjacent first sub-center magnets 111. In another specific example of the utility model, along the second direction, the width of the spacing portion 1b can be 0.05mm±0.02mm.

As shown in FIGS. 4-5 , in some embodiments of the utility model, the edge magnet portion 12 may include an edge magnet 121, and the edge magnet 121 and the plurality of first sub-center magnets 111 are magnetized along a first direction, and the magnetization directions between adjacent edge magnets 121 and the first sub-center magnets 111 and between two adjacent first sub-center magnets 111 are opposite. For example, the first direction may be a vertical z direction, that is, the edge magnet 121 and the plurality of first sub-center magnets 111 are magnetized along a vertical direction, the adjacent edge magnets 121 and the first sub-center magnets 111 and one of the two adjacent first sub-center magnets 111 are magnetized in a direction from top to bottom, and the adjacent edge magnets 121 and the first sub-center magnet 111 and the other of the two adjacent first sub-center magnets 111 are magnetized in a direction from bottom to top. Therefore, through the above-mentioned arrangement, the voice coil 22 can fully cut the magnetic flux lines within the magnetic gap 1a formed between the side magnetic part 12 and the center magnetic part 11, and the driving coil 322 can also fully cut the magnetic flux lines formed by the two adjacent first sub-center magnets 111, thereby ensuring the sound and vibration effects of the vibration sound-generating unit 100.

As shown in Figures 4 and 5, in some embodiments of the present invention, the central magnetic portion 11 also includes a central magnetic conductive plate 113, and the sides of the multiple first sub-center magnets 111 away from the second vibration system 3 are all connected to the central magnetic conductive plate 113. The central magnetic conductive plate 113 can not only play the role of gathering magnetic lines of force, but also assemble the multiple first sub-center magnets 111 together, thereby facilitating the installation and fixation of the multiple first sub-center magnets 111.

As shown in FIG. 5 , in some embodiments of the utility model, the magnetic yoke 13 includes a main body 131 and a hollow hole 132 provided in the main body 131 , the side magnetic part 12 and the first sub-center magnet 111 located at both ends are both provided in the main body 131 , and along the first direction, the hollow hole 132 is at least partially arranged opposite to the driving coil 322 . Specifically, one end of the plurality of first sub-center magnets 111 can be connected to the central magnetic plate 113 , and the other end of the first sub-center magnet 111 located at both ends is fixed to the main body 131 , thereby, the magnetic yoke 13 can not only fix the side magnetic part 12 and the center magnetic part 11 , but also play a role in magnetism gathering, and can ensure the magnetic field strength corresponding to the first vibration system 2 . By providing the hollow hole 132 on the main body 131 , the hollow hole 132 can be opposite to part of the driving coil 322 , or can be opposite to the entire driving coil 322 , thereby ensuring that the driving coil 322 can smoothly cut the magnetic flux lines, thereby ensuring the vibration effect of the second vibration system 3 .

Optionally, there may be multiple drive coils 322 and one hollow hole 132, and the hollow hole 132 is arranged correspondingly to the multiple drive coils 322, thereby simplifying the processing procedure of the hollow hole 132 and improving the processing efficiency. Optionally, there may be multiple drive coils 322, and multiple hollow holes 132 may also be arranged, and the multiple hollow holes 132 are arranged one-to-one with the multiple drive coils 322, thereby relatively reducing 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.

In some embodiments of the utility model, the projections of other first sub-center magnets 111 between the first sub-center magnets 111 located at both end positions along the first direction are all located on the inner side of the edge of the hollow hole 132, thereby ensuring the number of magnetic flux lines passing through the hollow hole 132, thereby ensuring the vibration effect of the second vibration system 3.

Furthermore, along the first direction, the other first sub-center magnets 111 between the first sub-center magnets 111 at both ends extend into the hollow hole 132, thereby reducing the distance between the central magnetic portion 11 and the driving coil 322, thereby increasing the strength of the magnetic flux lines acting on the driving coil 322, and further enhancing the vibration effect of the second vibration system 3.

In some embodiments of the utility model, a portion of the first sub-center magnet 111 located at both ends can be arranged on the main body 131, and the other portion of the first sub-center magnet 111 located at both ends is arranged opposite to the hollow hole 132, thereby ensuring the number of magnetic flux lines passing through the hollow hole 132, thereby ensuring the vibration effect of the second vibration system 3.

The following describes in detail a vibration sound-generating unit 100 according to a specific embodiment of the present utility model with reference to FIG. 2 , FIG. 5 and FIG. 7 .

As shown in FIG. 2 , FIG. 5 and FIG. 7 , the vibration sound-generating unit 100 includes: a magnetic circuit system 1 , a first vibration system 2 and a second vibration system 3 .

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

The first vibration system 2 vibrates along the 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 conductive plate 122 includes a horizontally extending first plate body 1221 and a vertically extending second plate body 1222. The first plate body 1221 is disposed on the side of the side magnet 121 away from the second vibration system 3. One end of the second plate body 1222 is connected to the first plate body 1221, and the other end of the second plate body 1222 extends along the first direction. The edge of the diaphragm 211 is fixed to the second plate body 1222. The second plate body 1222 can be integrally injection molded with the plastic basin frame 5 of the vibration sound-generating unit 100, that is, the second plate body 1222 can be used as a part of the bracket 4, and the edge of the diaphragm 211 can be fixed to the bracket 4. The folding ring portion of the diaphragm 211 extends along the first direction toward the direction close to the edge magnet portion 12 , and the first plate body 1221 is provided with a recessed portion 122 a corresponding to the folding ring portion.

The second vibration system 3 vibrates along the second direction. The second vibration system 3 includes an elastic connector 31 and a vibrator assembly 32. The main body 131 of the magnetic yoke 13 forms a square structure. A pair of diagonal positions of the main body 131 are provided with a support frame 133. The support frame 133 is formed into a plate-like structure. One end of the support frame 133 is connected to the main body 131. The other end of the support frame 133 extends in the first direction away from the main body 131. The two ends of the elastic connector 31 are respectively connected to the vibrator assembly 32 and the support frame 133. Thus, the magnetic circuit system 1 can suspend the vibrator assembly 32. The vibrator assembly 32 includes The counterweight block 321 and two driving coils 322 arranged on the counterweight block 321, each driving coil 322 has two long sides 3221 and two short sides 3222 arranged opposite to each other, the two short sides 3222 are arranged 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, thereby, the two short sides 3222 and the two long sides 3221 cooperate to define a center hole, along the first direction, each center hole is arranged one-to-one with each spacer 1b, and the two long sides 3221 are respectively arranged opposite to the two adjacent first sub-center magnets 111.

As shown in Figures 3 and 9, in some embodiments of the utility model, the central magnetic portion 11 may also include a central magnetic conductive plate 113, and the side of the multiple first sub-center magnets 111 away from the second vibration system 3 is connected to the central magnetic conductive plate 113, the magnetic yoke 13 includes a main body 131 and a hollow hole 132 provided on the main body 131, and the side of the side magnetic portion 12 close to the second vibration system 3 is provided on the main body 131. The central magnetic conductive plate 113 may include a supporting portion 1131 and an extending portion 1132 provided on the outside of the supporting portion 1131, the extending portion 1132 extends along a first direction, and the two ends of the extending portion 1132 are respectively connected to the supporting portion 1131 and the main body 131, the supporting portion 1131 and the hollow hole 132 are arranged opposite to each other, and the multiple first sub-center magnets 111 are fixed to the supporting portion 1131.

Specifically, the central magnetic plate 113 can not only play the role of gathering magnetic flux lines, but also assemble multiple first sub-center magnets 111 together. The central magnetic plate 113 includes a support portion 1131 extending along the second direction and an extension portion 1132 extending along the first direction, and one end of the multiple first sub-center 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 131, thereby, the magnetic yoke 13 can not only support the side magnetic portion 12, but also support the central magnetic portion 11 through the extension portion 1132. A hollow hole 132 is provided on the main body 131 of the magnetic yoke 13, and the other ends of the multiple first sub-center magnets 111 can be opposite to the hollow hole 132, and the hollow hole 132 can be opposite to a part of the driving coil 322, or can be opposite to the entire driving coil 322, thereby ensuring that the driving coil 322 can smoothly cut the magnetic flux lines, thereby ensuring the vibration effect of the second vibration system 3.

As shown in FIG3 , in some embodiments of the present invention, along a third direction perpendicular to the first direction and the second direction, the extension portion 1132 is located on opposite sides of the support portion 1131, and the edge 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, and the two extension portions 1132 can be located on both sides of the third direction of the support portion 1131, thereby connecting the support portion 1131 with the magnetic yoke 13, and the structural design is relatively simple. The edge magnetic portion 12 can be spaced apart from the extension portion 1132 to define a portion of the magnetic gap 1a, and the edge magnetic portion 12 can also be spaced apart from the first sub-center magnet 111 and the center magnetic plate 113 located at both ends to define another portion of the magnetic gap 1a.

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 on the inner side of the edge of the hollow hole 132 , thereby ensuring the number of magnetic flux lines passing through the hollow hole 132 , thereby ensuring the vibration effect of the second vibration system 3 .

Furthermore, along the first direction, multiple first sub-center magnets 111 all extend into the hollow hole 132, thereby reducing the distance between the central magnetic portion 11 and the driving coil 322, thereby increasing the strength of the magnetic flux lines acting on the driving coil 322, and further improving the vibration effect of the second vibration system 3.

The following describes in detail a vibration sound-generating unit 100 according to a specific embodiment of the present utility model with reference to FIG. 3 , FIG. 4 and FIG. 9 .

As shown in FIG. 3 , FIG. 4 and FIG. 9 , the vibration sound-generating unit 100 includes: a magnetic circuit system 1 , a first vibration system 2 and a second vibration system 3 .

The first vibration system 2 and the second vibration system 3 are respectively arranged on opposite sides of the magnetic circuit system 1. The magnetic circuit system 1 includes a magnetic yoke 13 and a central magnetic portion 11 and a side magnetic portion 12 arranged on the magnetic yoke 13. The side magnetic portion 12 is arranged outside the central magnetic portion 11 and the central magnetic portion 11 and the side magnetic portion 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 conductive plate 113. The central magnetic conductive plate 113 includes a support part 1131 extending along the second direction (horizontal x direction) and an extension part 1132 extending along the first direction (vertical z direction). The two ends of the extension part 1132 are respectively connected to the support part 1131 and the main body 131. There are two extension parts 1132 and they are arranged at the two ends of the third direction (horizontal y direction) of the support part 1131. 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 part 1131. Two adjacent first sub-central magnets 111 are spaced apart to form a spacing part 1b. The edge magnet part 12 includes an edge magnet 121 and an edge magnetic plate 122 disposed on the side of the edge magnet 121 away from the second vibration system 3. The edge magnet 121 and the plurality of first sub-center magnets 111 are magnetized along the first direction, and the magnetization directions between adjacent edge magnets 121 and first sub-center magnets 111 and between two adjacent first sub-center magnets 111 are opposite. The magnetic yoke 13 includes a main body 131 and a hollow hole 132 disposed on the main body 131. The edge magnet 121 is disposed on the main body 131, and the two ends of the extension part 1132 are respectively connected to the support part 1131 and the main body 131. Along the first direction, the plurality of first sub-center magnets 111 are opposite to the hollow hole 132.

The first vibration system 2 vibrates along the 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 conductive plate 122 includes a first plate body 1221 extending horizontally and a second plate body 1222 extending vertically. The first plate body 1221 is disposed on the side of the side magnet 121 away from the second vibration system 3. One end of the second plate body 1222 is connected to the first plate body 1221, and the other end of the second plate body 1222 extends along the first direction. Both ends of the diaphragm 211 are fixed to the second plate body 1222. The second plate body 1222 can be integrally injection molded with the plastic basin frame 5 of the vibration sound-generating unit 100, that is, the second plate body 1222 can be used as a part of the bracket 4, and the edge of the diaphragm 211 can be fixed to the bracket 4. The folding ring portion of the diaphragm 211 extends along the first direction toward the direction close to the edge magnet portion 12 , and the first plate body 1221 is provided with a recessed portion 122 a corresponding to the folding ring portion.

The second vibration system 3 vibrates along the second direction. The second vibration system 3 includes an elastic connector 31 and a vibrator assembly 32. The main body 131 of the magnetic yoke 13 forms a square structure. A pair of diagonal positions of the main body 131 are provided with a support frame 133. The support frame 133 is formed into a plate-like structure. One end of the support frame 133 is connected to the main body 131. The other end of the support frame 133 extends in the first direction away from the main body 131. The two ends of the elastic connector 31 are respectively connected to the vibrator assembly 32 and the support frame 133. Thus, the magnetic circuit system 1 can suspend the vibrator assembly 32. The vibrator assembly 32 includes The counterweight block 321 and two driving coils 322 arranged on the counterweight block 321, each driving coil 322 has two long sides 3221 and two short sides 3222 arranged opposite to each other, the two short sides 3222 are arranged 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, thereby, the two short sides 3222 and the two long sides 3221 cooperate to define a center hole, along the first direction, each center hole is arranged one-to-one with each spacer 1b, and the two long sides 3221 are respectively arranged opposite to the two adjacent first sub-center magnets 111.

As shown in Figures 1 and 8, in some embodiments of the utility model, the side magnetic portion 12 may include a side magnet 121, and the central magnetic portion 11 also includes a second sub-center magnet 112 arranged on both sides of the third direction of the plurality of first sub-center magnets 111, the third direction is perpendicular to the first direction and the second direction, respectively, 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 and between two adjacent first sub-center magnets 111 are opposite, and along the third direction, the magnetization directions between adjacent side magnets 121 and the second sub-center magnet 112 are opposite.

Specifically, the second direction and the third direction may be located in the same horizontal plane, for example, the second direction may be the horizontal x direction, the third direction may be the horizontal y direction, and the first direction may be the vertical z direction. The central magnetic part 11 includes a plurality of first sub-center magnets 111 spaced apart along the second direction and a second sub-center magnet 112 spaced apart along the third direction. The side magnets 121, the first sub-center magnet 111, and the second sub-center magnet 112 are all magnetized along the first direction, for example, the first direction may be the vertical z direction, and along the second direction, the adjacent side magnets 121 and the first sub-center magnet 111 and one of the two adjacent first sub-center magnets 111 are magnetized along the direction from top to bottom, and the adjacent side magnets 121 and the first sub-center magnet 111 and the other of the two adjacent first sub-center magnets 111 are magnetized along the direction from bottom to top. Along the third direction, the adjacent side magnets 121 and one of the second sub-center magnets 112 are magnetized along the direction from top to bottom, and the adjacent side magnets 121 and the other of the second sub-center magnets 112 are magnetized along the direction from bottom to top.

Therefore, through the above-mentioned arrangement, the voice coil 22 can fully cut the magnetic flux lines within the magnetic gap 1a formed between the side magnetic part 12 and the center magnetic part 11, and the driving coil 322 can also fully cut the magnetic flux lines formed by the two adjacent first sub-center magnets 111, thereby ensuring the sound and vibration effects of the vibration sound-generating unit 100.

In some embodiments of the utility model, the central magnetic portion 11 also includes a central magnetic conductive plate 113, and the sides of multiple first sub-center magnets 111 and second sub-center magnets 112 away from the second vibration system 3 are all connected to the central magnetic conductive plate 113, and the magnetic conductive yoke 13 includes a main body 131 and a hollow hole 132 provided in the main body 131, and the side magnets 121 and the second sub-center magnets 112 are both provided in the main body 131. Along the first direction, the hollow hole 132 is at least partially arranged opposite to the driving coil 322.

Specifically, the central magnetic plate 113 can not only gather magnetic flux lines, but also assemble multiple first sub-center magnets 111 and second sub-center magnets 112 together. Among them, the side magnets 121 and the second sub-center magnets 112 can be fixed to the main body 131 of the magnetic yoke 13, so that the central magnetic part 11 and the side magnetic part 12 can be supported by the magnetic yoke 13, and it can also gather magnetism, which can ensure the magnetic field strength of the corresponding first vibration system 2. A hollow hole 132 is set on the main body 131 of the magnetic yoke 13, and the hollow hole 132 can be opposite to part of the driving coil 322, or it can be opposite to the entire driving coil 322, thereby ensuring that the driving coil 322 can smoothly cut the magnetic flux lines, thereby ensuring the vibration effect of the second vibration system 3.

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 on the inner side of the edge of the hollow hole 132 , thereby ensuring the number of magnetic flux lines passing through the hollow hole 132 , thereby ensuring the vibration effect of the second vibration system 3 .

Furthermore, along the first direction, multiple first sub-center magnets 111 all extend into the hollow hole 132, thereby reducing the distance between the central magnetic portion 11 and the driving coil 322, thereby increasing the strength of the magnetic flux lines acting on the driving coil 322, and further improving the vibration effect of the second vibration system 3.

Furthermore, there can be multiple drive coils 322 and one hollow hole 132, and the hollow hole 132 is set corresponding to the multiple drive coils 322, thereby simplifying the processing procedure of the hollow hole 132 and improving the processing efficiency. Of course, there can be multiple drive coils 322, and multiple hollow holes 132 can also be set, and the multiple hollow holes 132 are set one by one with the multiple drive coils 322, thereby relatively reducing the opening area of the magnetic yoke 13, thereby improving the magnetic gathering effect and structural strength of the magnetic yoke 13.

The following describes in detail a vibration sound-generating unit 100 according to a specific embodiment of the present utility model with reference to FIG. 1 , FIG. 4 and FIG. 8 .

As shown in FIG. 1 , FIG. 4 and FIG. 8 , the vibration sound-generating unit 100 includes: a magnetic circuit system 1 , a first vibration system 2 and a second vibration system 3 .

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

The central magnetic part 11 includes three first sub-central magnets 111, two second sub-central magnets 112 and a central magnetic conductive plate 113. The three first sub-central magnets 111 are spaced apart along the second direction (horizontal x direction), and the two second sub-central magnets 112 are arranged on both sides of the three first sub-central magnets 111 in the third direction (horizontal y direction). The ends of each first sub-central magnet 111 and the second sub-central magnet 112 away from the second vibration system 3 are connected to the central magnetic conductive plate 113, and two adjacent first sub-central magnets 111 are spaced apart to form a spacing part 1b. The edge magnetic part 12 includes an edge magnet 121 and an edge magnetic conductive plate 122 arranged on the side of the edge magnet 121 away from the second vibration system 3. The magnetic conductive yoke 13 includes a main body 131 and a hollow hole 132 arranged on the main body 131. The edge magnet 121 and the second sub-central magnet 112 are both arranged on the main body 131. Along the first direction (vertical z direction), the plurality of first sub-central magnets 111 are opposite to the hollow hole 132. Among them, the side magnets 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 and 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.

Among them, the two adjacent first sub-center magnets 111 and the adjacent first sub-center magnets 111 and the second sub-center magnets 112 are arranged close to each other. It can be understood that although the two adjacent first sub-center magnets 111 and the adjacent first sub-center magnets 111 and the second sub-center magnets 112 are arranged close to each other, due to the existence of assembly errors and material errors, there will be a small gap between the two adjacent first sub-center magnets 111 and the adjacent first sub-center magnets 111 and the second sub-center magnets 112. For example, along the second direction, the gap width between the two adjacent first sub-center magnets 111 can be 0.05mm±0.02mm; along the third direction, the gap width between the adjacent first sub-center magnets 111 and the second sub-center magnets 112 can be 0.05mm±0.02mm.

Specifically, when the central magnetic part 11 is assembled, the two first sub-center magnets 111 at the two ends of the second direction and the two second sub-center magnets 112 at the two ends of the third direction can be fixed first, and then the first sub-center magnet 111 at the middle position can be inserted into the assembly space defined by the two first sub-center magnets 111 and the two second sub-center magnets 112. Thus, when the adjacent first sub-center magnets 111 and the adjacent first sub-center magnets 111 and second sub-center magnets 112 are arranged close to each other, there is no need to accurately position the first sub-center magnet 111 at the middle position, which simplifies the assembly process of the central magnetic part 11 and improves the assembly efficiency. Moreover, since the five magnets are arranged in pairs, when the first sub-center magnet 111 installed later is assembled, the glue used for fixing will overflow to the surrounding side of the magnet, and then overflow into the tiny gap between the two adjacent first sub-center magnets 111 and the adjacent first sub-center magnets 111 and the second sub-center magnet 112, so that the two adjacent first sub-center magnets 111 and the adjacent first sub-center magnets 111 and the second sub-center magnet 112 can be bonded together. As a result, 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 firmness of the central magnetic part 11. When the product falls or collides, the first sub-center magnet 111 and the second sub-center magnet 112 are not likely to loosen or fall off.

The first vibration system 2 vibrates along the 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 conductive plate 122 includes a first plate body 1221 extending horizontally and a second plate body 1222 extending vertically. The first plate body 1221 is disposed on the side of the side magnet 121 away from the second vibration system 3. One end of the second plate body 1222 is connected to the first plate body 1221, and the other end of the second plate body 1222 extends along the first direction. Both ends of the diaphragm 211 are fixed to the second plate body 1222. The second plate body 1222 can be integrally injection molded with the plastic basin frame 5 of the vibration sound-generating unit 100, that is, the second plate body 1222 can be used as a part of the bracket 4, and the edge of the diaphragm 211 can be fixed to the bracket 4. The folding ring portion of the diaphragm 211 extends along the first direction toward the direction close to the edge magnet portion 12 , and the first plate body 1221 is provided with a recessed portion 122 a corresponding to the folding ring portion.

The second vibration system 3 vibrates along the second direction. The second vibration system 3 includes an elastic connector 31 and a vibrator assembly 32. The main body 131 of the magnetic yoke 13 forms a square structure. A pair of diagonal positions of the main body 131 are provided with a support frame 133. The support frame 133 is formed into a plate-like structure. One end of the support frame 133 is connected to the main body 131. The other end of the support frame 133 extends in the first direction away from the main body 131. The two ends of the elastic connector 31 are respectively connected to the vibrator assembly 32 and the support frame 133. Thus, the magnetic circuit system 1 can suspend the vibrator assembly 32. The vibrator assembly 32 includes The counterweight block 321 and two driving coils 322 arranged on the counterweight block 321, each driving coil 322 has two long sides 3221 and two short sides 3222 arranged opposite to each other, the two short sides 3222 are arranged 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, thereby, the two short sides 3222 and the two long sides 3221 cooperate to define a center hole, along the first direction, each center hole is arranged one-to-one with each spacer 1b, and the two long sides 3221 are respectively arranged opposite to the two adjacent first sub-center magnets 111.

As shown in FIGS. 1 to 3 , according to some embodiments of the utility model, a mounting groove 321a is provided on one side of the counterweight block 321 close to the magnetic circuit system 1, and the driving coil 322 is embedded in the mounting groove 321a, thereby making the structure of the vibrator assembly 32 more compact. Optionally, a fixing glue may be provided in the mounting groove 321a, and the driving coil 322 may be fixed in the mounting groove 321a by the fixing glue. It should be noted that the structural design of the counterweight block 321 is not limited to this. For example, the counterweight block 321 may not be provided with the mounting groove 321a, and the driving coil 322 may be bonded to the outer surface of the counterweight block 321.

As shown in Figure 6, according to some embodiments of the utility model, there can be multiple magnetic gaps 1a, and the multiple magnetic gaps 1a are coaxially arranged and distributed in sequence from the inside to the outside. There can also be multiple voice coils 22, and the multiple voice coils 22 are arranged in a one-to-one correspondence with the multiple magnetic gaps 1a. Thus, the first vibration system 2 can be formed into 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 effect of the vibration sound-generating unit 100.

In the specific embodiment shown in Figure 6, the magnetic circuit system 1 includes a central magnetic portion 11 and a side magnetic portion 12, the central magnetic portion 11 includes a first sub-central magnetic portion 11a and a second sub-central magnetic portion 11b, the second sub-central magnetic portion 11b is arranged on the outside of the first sub-central magnetic portion 11a and is spaced apart from the first sub-central magnetic portion 11a to form a first sub-magnetic gap 1c, the side magnetic portion 12 is arranged on the outside of the second sub-central magnetic portion 11b and is spaced apart from the second sub-central magnetic portion 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 in the first sub-magnetic gap 1c, and the other end of the second sub-voice coil 22b is inserted in the second sub-magnetic gap 1d. Thus, the first vibration system 2 can be formed into a structure in which a dual voice coil 22 synchronously drives a diaphragm assembly 21, thereby improving the magnetic field utilization rate of the magnetic circuit system 1, and further improving the sound sensitivity of the vibration sound-generating unit 100. The driving coil 322 has two connecting edges arranged opposite to each other, and along the first direction, the two connecting edges are arranged opposite to the first sub-center magnetic portion 11a and the second sub-center magnetic portion 11b respectively. Of course, the two connecting edges can also be arranged opposite to the second sub-center magnetic portion 11b and the edge magnetic portion 12 respectively along the first direction.

It should be noted that in the structure in which the plurality of voice coils 22 synchronously drive the diaphragm assembly 21 , the number of voice coils 22 can be selected and set according to actual usage requirements, and the present invention does not limit this.

In some embodiments of the utility model, the first sub-center magnetic portion 11a may include a first center magnet, the second sub-center magnetic portion 11b may include a second center magnet disposed on the periphery of the first center magnet, the side magnetic portion 12 may include a side magnet 121 disposed on the periphery of the second sub-center magnetic portion 11b, the first center magnet, the second center magnet and the side magnet are all magnetized along the first direction (vertical z direction), and along the second direction (horizontal x direction), the magnetization directions between the adjacent first center magnet and the second center magnet and between the adjacent second center magnet and the side magnet 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 flux lines within the first sub-magnetic gap 1c and the second sub-magnetic gap 1d, and the driving coil 322 can also fully cut the magnetic flux lines between the adjacent first sub-center magnetic portion 11a and the second sub-center magnetic portion 11b, so as to ensure the sound and vibration effects of the vibration sound-generating unit 100.

Optionally, the first central magnet can be set to one piece, the second central magnet includes four pieces and is arranged around the first central magnet, the side magnets 121 also include four pieces and are arranged on the outside of the second sub-center magnetic part 11b, and the four second central magnets and the four side magnets 121 are arranged one by one.

In some embodiments of the utility model, the second center magnets at both ends of the second direction (e.g., horizontal x direction) of the first center magnet are first magnets, and the second center magnets at both ends of the third direction (e.g., horizontal y direction) of the first center magnet are second magnets, the third direction is perpendicular to the first direction (e.g., vertical z direction) and the second direction, respectively, and the volume of the first magnet is greater than the volume of the second magnet. It can be understood that since the long side 3221 of the driving coil 322 extends along the third direction, the magnetic field acting on the driving coil 322 mainly comes from the first center magnet and the second center magnets (first magnets) located on both sides of the second direction of the first center magnet. By setting the volume of the first magnet to be greater than the volume of the second magnet, the magnetic field strength acting on the driving coil 322 can be increased, thereby enhancing the vibration sense of the vibration sound-generating unit 100.

Furthermore, the second sub-center magnetic portion 11a also includes a second center magnetic conductive plate arranged on the side of the second center magnet close to the diaphragm assembly 211. The second center magnetic conductive plate forms a closed ring structure, which can facilitate the centralized assembly of the first magnet and the second magnet and improve assembly efficiency.

In some embodiments of the utility model, the magnetic yoke 13 may include a main body 131 and a hollow hole 132 provided in the main body 131. Along a first direction (for example, a vertical z direction), the hollow hole 132 is at least partially arranged opposite to the driving coil 322. The edge magnetic portion 12 and the second sub-center magnetic portion 11b are both arranged in the main body 131. The first sub-center magnetic portion 11a includes a first center magnet and a first center magnetic plate. The first center magnetic plate may include a support plate and an extension plate provided 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 respectively connected to the support plate and the main body 131. The support plate and the hollow hole 132 are arranged opposite to each other, and the first center magnet is provided on the support plate.

Specifically, the magnetic yoke 13 can be used to support the first sub-center magnetic portion 11a, the second sub-center magnetic portion 11b and the edge magnetic portion 12. Among them, the second sub-center magnetic portion 11b and the edge magnetic portion 12 are arranged on the main body 131 of the magnetic yoke 13. Since the extension plate of the first center magnetic plate is connected to the main body 131, the magnetic yoke 13 supports the first sub-center magnetic portion 11a through the extension plate. It can be understood that since the magnetic yoke 13 is provided with a hollow hole 132 opposite to the driving coil 322 along the first direction, wherein the hollow hole 132 can be opposite to part of the driving coil 322 or the entire driving coil 322, it can be ensured that the driving coil 322 can smoothly cut the magnetic flux line, thereby ensuring the vibration effect of the second vibration system 3. Optionally, the support plate can be extended horizontally, the first center magnet is arranged on the side of the support plate close to the hollow hole 132, and the extension plate can be extended vertically, and the two ends of the extension plate are respectively connected to the support plate and the main body 131.

In some embodiments of the utility model, along a third direction perpendicular to the first direction and the second direction respectively, the extension plate is located on opposite sides of the support plate, and the second sub-center magnetic portion 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. Among them, there can be two extension plates, and the two extension plates can be arranged on both sides of the third direction of the support plate, thereby connecting the support plate with the magnetic yoke 13, and the structural design is relatively simple. Among them, the second sub-center magnetic portion 11b can be spaced apart from the support plate to define a portion of the first sub-magnetic gap 1c, and the second sub-center magnetic portion 11b can also be spaced apart from both sides of the second direction of the first center magnet to define another portion of the first sub-magnetic gap 1c.

In some embodiments of the present invention, the second sub-center magnetic portion 11b may include a second center magnet arranged on the periphery of the first center magnet, and the second center magnets on both sides of the third direction (for example, the horizontal y direction) of the first sub-center magnetic portion 11a are arranged on the main body 131, and the second center magnets on both sides of the second direction (for example, the horizontal x direction) of the first sub-center magnetic portion 11a are opposite to the hollow hole 132 along the first direction, thereby increasing the area of the second center magnet arranged opposite to the hollow hole 132, thereby ensuring the number of magnetic lines of force acting on the driving coil 322, and ensuring the vibration effect of the second vibration system 3.

In some embodiments of the utility model, the second sub-center magnetic portion 11b may include a second center magnetic conductive plate arranged on the side of the second center magnet away from the main body portion 131, and the second center magnetic conductive plate is formed into an annular structure and is sleeved on the outer side of the support plate, so that the second center magnets located on the periphery of the first center magnet are connected to the side of the second center magnetic conductive plate away from the diaphragm assembly 21, and the second center magnets located on both sides of the third direction of the first sub-center magnetic portion 11a are arranged on the main body portion 131, and the bottom of the second center magnet located on both sides of the second direction of the first sub-center magnetic portion 11a is opposite to the hollow hole 132 along the first direction. Through the above arrangement, the second center magnetic conductive plate can suspend the second center magnets located on both sides of the second direction of the first sub-center magnetic portion 11a. The structural design is simple and ingenious, which can not only meet the magnetic field force requirements of the first sub-voice coil 22a, but also ensure the number of magnetic flux lines acting on the driving coil 322, thereby ensuring the vibration effect of the second vibration system 3.

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 portion 11a in the second direction (for example, the horizontal x direction) along the first direction (for example, the vertical z direction) are located on the inner side of the edge of the hollow hole 132, thereby ensuring the number of magnetic flux lines passing through the hollow hole 132, thereby ensuring the vibration effect of the second vibration system 3.

Furthermore, along the first direction, the first center magnet and the second center magnet located on both sides of the first sub-center magnetic portion 11a in the second direction extend into the hollow hole 132, thereby reducing the distance between the first sub-center magnetic portion 11a and the second sub-center magnetic portion 11b and the driving coil 322, thereby increasing the magnetic field strength acting on the driving coil 322, and further enhancing the vibration effect of the second vibration system 3.

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

As shown in Figure 14, the vibration and sound module 200 according to the embodiment of the second aspect of the utility model includes a shell 201 and a vibration and sound unit 100 according to the above embodiment of the utility model. The vibration and sound unit 100 is arranged in the shell 201, and the first end of the fixing component is connected to the inner wall of the shell 201, so that the vibration and sound unit 100 can be fixed in the shell 201, and the fixing component can suspend the vibrator component 32 in the second vibration system 3 in the shell 201.

It can be understood that, in some embodiments, when the diaphragm 211 of the first vibration system 2 is fixed to the end surface of the first end of the fixing component, the end surface of the first end of the fixing component fixes the diaphragm 211 and then connects to the inner wall of the housing 201. Alternatively, in some other embodiments, the end surface of the first end of the fixing component is sequentially connected to the diaphragm 211 and the front cover, and the front cover serves as a protective member. In this case, the first end of the fixing component fixes the diaphragm 211 and the front cover and then connects to the inner wall of the housing 201.

Typically, the vibration sound unit is arranged in the shell 201 of the vibration sound module 200, dividing the internal space of the shell 201 into a front sound cavity and a rear sound cavity. The front sound cavity is connected to the sound outlet on the shell 201 to output 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.

According to the vibration and sound module 200 of the second aspect of the embodiment of the utility model, by setting the above-mentioned vibration and sound monomer 100, the first vibration system 2 and the second vibration system 3 of the vibration and sound monomer 100 share a set of magnetic circuit system 1, and the structure is relatively compact, thereby increasing the sound cavity volume of the vibration and sound module 200; moreover, the elastic connecting parts 31 of the above-mentioned vibration and sound monomer 100 are respectively connected to the fixed component and the vibrator component 32, thereby realizing modular and standardized design, thereby improving the assembly efficiency of the vibration and sound module 200.

The electronic device according to the third aspect of the present invention comprises the vibration sound module 200 according to the above embodiment of the present invention. Optionally, the electronic device can be a mobile phone, a PAD, a laptop computer, etc.

According to the electronic device of the third aspect of the embodiment of the utility model, by setting the above-mentioned vibration sound module 200, the structure design of the vibration sound module 200 is compact, the assembly space occupied is small, and it also has good sound effect and vibration effect, so that it can meet the requirements of lightweight design of electronic equipment, and it can also make the electronic equipment have both good sound quality and vibration feedback effect, thereby improving the product market competitiveness of the electronic equipment.

Claims (14)

1. A vibration sound-generating unit, characterized in that it comprises: A fixing assembly, the fixing assembly comprising a bracket and a magnetic circuit system fixed to the bracket, the magnetic circuit system comprising a magnetic yoke and a central magnetic portion and a side magnetic portion respectively arranged on the magnetic yoke, the side magnetic portion being arranged 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, wherein the first vibration system and the second vibration system are respectively arranged on opposite sides of the fixing component and are respectively fixed to opposite ends of the fixing component, wherein: The first vibration system vibrates along a first direction, the first vibration system is fixed to a first end of the fixing assembly, the first vibration system comprises 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 comprises an elastic connector and a vibrator assembly, two ends of the elastic connector are respectively connected to the vibrator assembly and the second end of the fixed assembly, the vibrator assembly comprises a driving coil, and the magnetic circuit system is arranged corresponding to the driving coil to drive the vibrator assembly to vibrate; Wherein, the edge magnetic part includes edge magnets, the central magnetic part includes a central magnetic conductive plate, a plurality of first sub-center magnets spaced apart along the second direction, and second sub-center magnets arranged on both sides of the third direction of the plurality of first sub-center magnets, the third direction is perpendicular to the first direction and the second direction respectively, the plurality of first sub-center magnets and the second sub-center magnets are connected to the central magnetic conductive plate on one side away from the second vibration system, the magnetization directions of two adjacent first sub-center magnets are opposite, the driving coil has two long sides arranged oppositely, along the first direction, the two long sides are respectively arranged oppositely to the two adjacent first sub-center magnets, the magnetic conductive yoke includes a main body and a hollow hole arranged in the main body, the edge magnets and the second sub-center magnets are both arranged in the main body, and along the first direction, the hollow hole is at least partially arranged oppositely to the driving coil. 2. The vibration sound-generating unit according to claim 1 is characterized in that the two ends of the elastic connecting member are respectively connected to the vibrator assembly and the bracket, the bracket has a mounting portion extending to the second end of the fixed assembly, and the elastic connecting member is fixedly connected to the mounting portion. 3. The vibration sound-generating unit according to claim 1 is characterized in that two ends of the elastic connecting member are respectively connected to the vibrator assembly and the magnetic circuit system. 4. The vibration sound-generating unit according to claim 1, characterized in that the side magnet portion further comprises a side magnetic conductive plate disposed on a side of the side magnet away from the second vibration system, the side magnetic conductive plate having a mounting portion extending to the second end of the fixing assembly, and the elastic connecting member is fixedly connected to the mounting portion; Alternatively, the elastic connecting member is fixedly connected to a side of the magnetic circuit system. 5 . The vibration sound-generating unit according to claim 1 , wherein the elastic connecting member is connected to the magnetic yoke. 6. The vibration sound-generating unit according to claim 5 is characterized in that the magnetic yoke also includes support frames arranged at both ends of the main body, one end of the elastic connecting member is connected to the support frame, and the other end of the elastic connecting member is connected to the vibrator assembly. 7. The vibration sound-generating unit according to claim 6 is characterized in that the main body is formed into a square structure, and the number of the supporting frames is two and they are respectively arranged at diagonal positions of the main body. 8. The vibration sound-generating unit according to claim 7 is characterized in that the elastic connecting member 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 is 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 vibrator assembly. 9. The vibration sound-generating unit according to claim 1 is characterized in that the side magnet, the first sub-center magnet and the second sub-center magnet are all magnetized along the first direction, and along the second direction, the magnetization directions between adjacent side magnets and the first sub-center magnet and between two adjacent first sub-center magnets are opposite, and along the third direction, the magnetization directions between adjacent side magnets and the second sub-center magnets are opposite. 10 . The vibration sound-generating unit according to claim 1 , wherein the projections of the plurality of first sub-center magnets along the first direction are all located inside the edge of the hollow hole. 11. The vibration sound-generating unit according to claim 10 is characterized in that, along the first direction, a plurality of the first sub-center magnets all extend into the hollow hole. 12. The vibration sound-generating unit according to any one of claims 1 to 11, characterized in that, along the second direction, the gap between two adjacent first sub-center magnets is close to zero or equal to zero. 13. A vibration sound module, characterized by comprising: A shell and a vibration sound-generating unit according to any one of claims 1 to 12, wherein the vibration sound-generating unit is arranged in the shell, and the first end of the fixing component is connected to the inner wall of the shell. 14. An electronic device, characterized by comprising the vibration sound module according to claim 13.