CN117221799A

CN117221799A - Vibration sounding monomer, vibration sounding module and electronic equipment

Info

Publication number: CN117221799A
Application number: CN202311271966.4A
Authority: CN
Inventors: 刘华伟; 李�杰; 朱婷; 赵国栋
Original assignee: Goertek Inc
Current assignee: Goertek Inc
Priority date: 2023-05-23
Filing date: 2023-09-28
Publication date: 2023-12-12
Also published as: CN117098046A; CN220915414U; CN116709134A; CN117061964A; CN116744192A; CN117061965A; CN220108193U; CN117061963A; CN220915415U; CN116709133A; CN116684793A; CN220915412U; CN116684792A

Abstract

The invention discloses a vibration sounding monomer, a vibration sounding module and electronic equipment, wherein the vibration sounding monomer comprises a fixing component, a first vibration system and a second vibration system, the fixing component comprises a bracket and a magnetic circuit system fixed on the bracket, the first vibration system and the second vibration system are respectively arranged on two opposite sides of the fixing component and are respectively fixed on two opposite ends of the fixing component, the first vibration system vibrates along a first direction, the second vibration system vibrates along a second direction perpendicular to the first direction, the second vibration system comprises an elastic connecting piece and a vibrator component, a magnetic yoke comprises a body part and first supporting frames arranged at two ends of the body part, the first supporting frames and the body part are of split structures and are formed by different materials, and two ends of the elastic connecting piece are respectively connected with the first supporting frames and a balancing weight, and the magnetic circuit system and a driving coil are correspondingly arranged to drive the vibrator component to vibrate. The vibration sounding monomer is compact in structure, can realize modularized and standardized design, and is high in applicability.

Description

Vibration sounding monomer, vibration sounding module and electronic equipment

Technical Field

The invention relates to the field of electroacoustic equipment, in particular to a vibration sounding monomer, a vibration sounding module and electronic equipment.

Background

Intelligent terminal devices, especially mobile phone products, often need to have both audio experience and vibrotactile feedback experience functions. Wherein the audio experience is from a sound generating unit and the vibrotactile feedback experience is from a vibration unit.

In the related art, a vibration sound generating module in which a sound generating unit and a vibration unit are integrated is proposed. The sound generating unit and the vibration unit are separately arranged and respectively formed into independent control units, and the sound generating unit and the vibration unit are stacked and arranged in the shell of the vibration sound generating module. The structure can integrate the sounding unit and the vibration unit, but the assembly space occupied by the vibration sounding module is too large, so that the miniaturization and the light weight design of the terminal equipment are affected.

Moreover, the two ends of the elastic connecting piece of the vibration sounding module are respectively connected with the module shell and the vibrator assembly, when the model of the vibration sounding module changes, the vibration unit needs to adjust the structural design of the elastic connecting piece according to the change of the vibration sounding module, modularization and standardization design of the vibration sounding unit cannot be realized, and production efficiency is reduced.

Disclosure of Invention

The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides the vibration sounding monomer which has the advantages of simple and compact structure and realization of modularization and standardized design.

The invention also provides a vibration sounding module with the vibration sounding monomer.

The invention also provides electronic equipment with the vibration sounding module.

A vibration sound producing monomer according to an embodiment of the first aspect of the present invention includes: the fixing assembly comprises a bracket and a magnetic circuit system fixed on the bracket, and the magnetic circuit system is provided with a magnetic gap; the first vibration system and the second vibration system are respectively arranged on two opposite sides of the fixed assembly and are respectively fixed on two opposite ends of the fixed assembly, wherein the first vibration system vibrates along a first direction and is fixed at a first end of the fixed assembly, the first vibration system comprises a vibrating diaphragm assembly and a voice coil, one end of the voice coil is connected with the vibrating 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 connecting piece and a vibrator assembly, two ends of the elastic connecting piece are respectively connected with the vibrator assembly and a second end of the fixing assembly, the vibrator assembly comprises a balancing weight and a driving coil arranged on the balancing weight, and the magnetic circuit system and the driving coil are correspondingly arranged to drive the vibrator assembly to vibrate.

According to the vibration sounding monomer of the embodiment of the first aspect of the invention, the magnetic gap corresponding to the voice coil in the first vibration system is arranged in the magnetic circuit system, and the magnetic circuit system is also arranged corresponding to the driving coil of the second vibration system, so that part of the magnetic field of the magnetic circuit system can be used as the magnetic field of the second vibration system, the magnetic field utilization rate of the magnetic circuit system can be improved, one set of magnetic circuit system is saved, the production cost is reduced, and in addition, the assembly space occupied by one set of magnetic circuit system can be saved, thereby meeting the miniaturization and light-weight design of the vibration sounding monomer. Moreover, the two ends of the elastic connecting piece in the second vibration system are respectively connected with the vibrator assembly and the fixing assembly, so that the vibration sounding monomer can be formed into an independent functional unit, modularization and standardization design of the vibration sounding monomer can be realized, and applicability of the vibration sounding monomer is greatly improved.

According to some embodiments of the invention, the first support frame is made of metal material, and the first support frame and the body part are fixed together by means of welding connection.

According to some embodiments of the invention, the first supporting frame further has a portion disposed at the other two ends of the body portion, and the first supporting frame has a ring-shaped structure.

According to some embodiments of the invention, the outer edge of the first support frame does not exceed the outer edge of the first end of the vibratable sounding unit formed by the first vibration system after being fixed to the first end of the fixed assembly; or, the outer edge of the first support frame is substantially flush with the outer edge of the first end of the vibration sounding unit formed by the first vibration system after the first vibration system is fixed at the first end of the fixing assembly.

According to some embodiments of the invention, a side portion of the body portion of the magnetic yoke extending in the second direction is provided with a limiting portion extending toward the second vibration system, and a side portion of the balancing weight extending in the second direction is provided with a limiting groove for accommodating the limiting portion, and a width of the limiting groove is larger than a width of the limiting portion along the second direction.

According to some embodiments of the invention, the vibration sounding unit further includes a cover plate, the cover plate is located at a side of the second vibration system away from the first vibration system, and the cover plate is connected with an end of the first support frame away from the body portion to define an installation space of the second vibration system.

According to some embodiments of the invention, a plurality of grooves are formed in one end of the first support frame connected with the body portion, a plurality of protruding portions are formed in the edge of the body portion, and the protruding portions extend into the grooves and are fixed to the bottoms of the grooves.

In some embodiments of the present invention, the support includes a second support frame, the outer periphery of the diaphragm assembly is fixed to the second support frame, and a fitting portion extending along the first direction for mounting the magnetic circuit system is provided on a side of the second support frame adjacent to the second vibration system, and the fitting portion is inserted into the groove.

In some embodiments of the present invention, the magnetic circuit includes a central magnetic portion and an edge magnetic portion, the central magnetic portion and the edge magnetic portion are spaced apart to define the magnetic gap, and the edge magnetic portion includes an edge magnet and an edge magnetic conductive plate disposed on a side of the edge magnet near the diaphragm assembly; the side magnetic conduction plate is formed into an annular structure, the side magnetic conduction plate comprises an annular main body part, the main body part comprises four connecting sides connected end to end, the side magnetic conduction plate further comprises a first extending plate and a second extending plate which are arranged on each connecting plate, the first extending plates extend along the first direction, the second extending plates extend along the direction perpendicular to the first direction and are opposite to the side magnets, plastic material parts are injected at four corners of the main body part, and the plastic material parts and the first extending plates are connected to form the annular structure to jointly form the second supporting frame.

According to some embodiments of the invention, the balancing weight is provided with a mounting hole penetrating along a first direction, the driving coil is located in the mounting hole, the second vibration system further comprises a supporting back plate, the supporting back plate is located on one side, away from the first vibration system, of the balancing weight and opposite to the mounting hole, and the driving coil is supported on the supporting back plate.

In some embodiments of the invention, the support backplate is a magnetically permeable member; and/or the supporting backboard seals part of the assembly hole so that the wire inlet end and/or the wire outlet end of the driving coil are exposed.

According to some embodiments of the invention, the magnetic circuit includes a central magnetic portion and a side magnetic portion respectively provided on the magnetic yoke, the side magnetic portion is provided on an outer side of the central magnetic portion and is spaced apart from the central magnetic portion to define the magnetic gap, the central magnetic portion includes a central magnet, the side magnetic portion includes a side magnet, the driving coil has two long sides disposed opposite to each other, and along the first direction, the two long sides are disposed opposite to the central magnet and the side magnet, respectively.

According to some embodiments of the invention, the magnetic circuit includes a central magnetic portion and a side magnetic portion respectively disposed on the magnetic yoke, the side magnetic portion is disposed on an outer side of the central magnetic portion and is spaced from the central magnetic portion to define the magnetic gap, the central magnetic portion includes a plurality of first sub-center magnets distributed at intervals along the second direction, magnetizing directions of two adjacent first sub-center magnets are opposite, the driving coil has two long sides disposed opposite to each other, and the two long sides are disposed opposite to the two adjacent first sub-center magnets along the first direction.

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

In some embodiments of the present invention, the side magnet portion includes a side magnet, the side magnet and the plurality of first sub-center magnets are magnetized in the first direction, and magnetizing directions between the adjacent side magnet and the first sub-center magnet and between the adjacent two first sub-center magnets are opposite.

In some embodiments of the present invention, the central magnetic portion further includes a central magnetic conductive plate, and a plurality of sides of the first sub-central magnets away from the second vibration system are connected to the central magnetic conductive plate.

In some embodiments of the present invention, the magnetic yoke includes a body portion and a hollow hole provided in the body portion, the side magnetic portion and the first sub-center magnet located at two end positions are both provided in the body portion, and along the first direction, the hollow hole is at least partially opposite to the driving coil.

In some embodiments of the present invention, the projections of the other first sub-center magnets located between the first sub-center magnets located at both end positions along the first direction are located inside the edge of the hollowed-out hole, and the other first sub-center magnets located between the first sub-center magnets located at both end positions along the first direction are all extended into the hollowed-out hole.

In some embodiments of the present invention, the central magnetic portion further includes a central magnetic conductive plate, one side of the plurality of first sub-central magnets, which is far away from the second vibration system, is connected to the central magnetic conductive plate, the magnetic conductive yoke includes a body portion and a hollowed hole provided in the body portion, the central magnetic conductive plate includes a support portion and an extension portion provided outside the support portion, the extension portion extends along the first direction, two ends of the extension portion are respectively connected to the support portion and the body portion, the support portion is disposed opposite to the hollowed hole, and the plurality of first sub-central magnets are all fixed to the support portion.

In some embodiments of the invention, the extension is located on opposite sides of the support along a third direction perpendicular to the first direction and the second direction, respectively, and the side magnetic portion is spaced apart from the extension to define a portion of the magnetic gap.

In some embodiments of the present invention, projections of the plurality of first sub-center magnets along the first direction are located inside edges of the hollowed-out hole, and the plurality of first sub-center magnets extend into the hollowed-out hole along the first direction.

In some embodiments of the present invention, the side magnet portion includes a side magnet, the center magnet portion further includes a second sub-center magnet disposed at both sides of a third direction of the plurality of first sub-center magnets, the third direction being perpendicular to the first direction and the second direction, respectively, the side magnet, the first sub-center magnet, and the second sub-center magnet are magnetized in the first direction, and magnetizing directions between adjacent side magnets and the first sub-center magnet and between adjacent two of the first sub-center magnets are opposite, and magnetizing directions between adjacent side magnets and the second sub-center magnet are opposite, respectively, in the third direction.

In some embodiments of the present invention, the central magnetic portion further includes a central magnetic conductive plate, one sides of the plurality of first sub-center magnets and the plurality of second sub-center magnets, which are far away from the second vibration system, are connected to the central magnetic conductive plate, the magnetic conductive yoke includes a body portion and a hollowed hole provided in the body portion, the side magnets and the second sub-center magnets are provided in the body portion, and the hollowed hole is at least partially opposite to the driving coil along the first direction.

According to some embodiments of the present invention, the plurality of magnetic gaps are coaxially arranged and sequentially spaced from inside to outside, and the plurality of voice coils are arranged in a one-to-one correspondence with the plurality of magnetic gaps.

According to some embodiments of the invention, the second vibration system further comprises a flexible circuit board, the flexible circuit board comprises a flexible board portion, and a first board portion and a second board portion which are arranged at two ends of the flexible board portion, the first board portion is fixed on the balancing weight and is provided with an inner bonding pad electrically connected with the driving coil, the second board portion is positioned at the outer side of the fixed assembly and is provided with an outer bonding pad electrically connected with an external circuit, the flexible board portion comprises two connecting portions which are opposite along a first direction and extend along a second direction, and the extending lengths of the two connecting portions along the second direction change along with the vibration of the vibrator assembly.

According to a second aspect of the present invention, a vibration sounding module includes a housing and a vibration sounding unit according to the above embodiment of the present invention, the vibration sounding unit is disposed in the housing, and a first end of the fixing component is connected to an inner wall of the housing.

According to the vibration sounding module provided by the embodiment of the second aspect of the invention, by arranging the vibration sounding single body, the first vibration system and the second vibration system of the vibration sounding single body share one set of magnetic circuit system, so that the structure is compact, and the volume of an acoustic cavity of the vibration sounding module can be increased; moreover, the elastic connecting piece of the vibration sounding monomer is connected with the fixing component and the vibrator component respectively, so that modularization and standardization design can be realized, and the assembly efficiency of the vibration sounding module can be improved.

An electronic device according to an embodiment of the third aspect of the present invention includes the vibration sound emitting module according to the above-described embodiment of the present invention.

According to the electronic equipment provided by the embodiment of the third aspect of the invention, by arranging the vibration sounding module, the structural design of the vibration sounding module is compact, the occupied assembly space is small, and the electronic equipment also has good sounding effect and vibration effect, so that the design requirement of the electronic equipment for lightening and thinning can be met, the electronic equipment also has good tone quality and vibration feedback effect, and the market competitiveness of the electronic equipment product is improved.

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

Drawings

The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic diagram of an exploded structure of a vibrotactile monomer according to one embodiment of the invention;

FIG. 2 is a schematic diagram of an exploded structure of a vibrotactile monomer according to another embodiment of the present invention;

FIG. 3 is a schematic diagram of an exploded construction of a vibrotactile monomer according to yet another embodiment of the present invention;

FIG. 4 is a vertical cross-sectional view of a vibrotactile element in a second direction, according to one embodiment of the invention;

FIG. 5 is a vertical cross-sectional view of a vibrotactile element according to another embodiment of the invention, taken along a second direction;

FIG. 6 is a vertical cross-sectional view of a vibratory sound unit according to yet another embodiment of the invention, taken along a second direction;

FIG. 7 is a vertical cross-sectional view of a vibrotactile element in a third direction, according to one embodiment of the invention;

FIG. 8 is a vertical cross-sectional view of a vibrotactile element in a third direction, according to another embodiment of the invention;

FIG. 9 is a vertical cross-sectional view of a vibrotactile element in a third direction, according to yet another embodiment of the invention;

FIG. 10 is a schematic diagram of a vibratory sound element at a first view angle in accordance with one embodiment of the present invention;

FIG. 11 is a schematic diagram of a vibratory sound unit at another view angle in accordance with an embodiment of the invention;

FIG. 12 is a schematic diagram of the overall structure of a vibrotactile monomer according to one embodiment of the invention;

FIG. 13 is a cross-sectional view of a vibrotactile element in a second direction, according to one embodiment of the invention;

FIG. 14 is a schematic view of a partial exploded construction of a vibrotactile monomer according to one embodiment of the invention;

FIG. 15 is an enlarged partial schematic view of the portion indicated by circle A in FIG. 14;

FIG. 16 is a side view of a vibrotactile monomer according to one embodiment of the invention;

fig. 17 is an exploded view of a second support structure according to one embodiment of the invention.

Reference numerals:

the sounding unit 100 is vibrated,

magnetic circuit 1, magnetic gap 1a, spacer 1b, first sub-magnetic gap 1c, second sub-magnetic gap 1d, central magnetic portion 11, first sub-central magnetic portion 11a, second sub-central magnetic portion 11b, first sub-central magnet 111, second sub-central magnet 112, central magnetic conductive plate 113, support portion 1131, extension portion 1132, side magnetic portion 12, side magnet 121, side magnetic conductive plate 122, first extension plate 1221, second extension plate 1222, recess portion 122a, magnetic conductive yoke 13, body portion 131, hollowed hole 132, first support frame 133, groove 133a, stopper 134, protrusion 135,

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 connection member 31, the first elastic connection portion 311, the second elastic connection portion 312, the vibrator assembly 32, the weight 321, the fitting hole 321a, the limit groove 321b, the driving coil 322, the long side 3221, the short side 3222, the flexible circuit board 33, the flexible board portion 331, the first board portion 332, the second board portion 333, the support back 34,

the cover plate 4 is provided with a plurality of grooves,

the second support 5, the assembly part 51, the plastic material part 52.

Detailed Description

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar components or components having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.

Hereinafter, a vibration/sound generation unit 100 according to an embodiment of the first aspect of the present invention will be described in detail with reference to fig. 1 to 17, and the vibration/sound generation unit 100 may be a speaker unit having both a sound generation function and a vibration function.

As shown in fig. 1 to 3, a vibration sound producing unit 100 according to an embodiment of the first aspect of the present invention includes: a fixed assembly, a first vibration system 2 and a second vibration system 3.

The fixing assembly may include a bracket and a magnetic circuit system 1 fixed to the bracket, where the magnetic circuit system 1 has a magnetic gap 1a. The first vibration system 2 and the second vibration system 3 are respectively arranged at two opposite sides of the fixed assembly and are respectively fixed at two opposite ends of the fixed assembly, the first vibration system 2 can vibrate along a first direction, the first vibration system 2 is fixed at the first end of the fixed assembly, the first vibration system 2 can comprise a vibrating diaphragm assembly 21 and a voice coil 22, one end of the voice coil 22 is connected with the vibrating 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 the vertical direction under the driving of the magnetic field force, so as to drive the diaphragm assembly 21 to vibrate and sound, and implement the sound-producing function of the vibration sound-producing unit 100. In a specific example of the present invention, the diaphragm assembly 21 may include a diaphragm 211 and a dome 212, where the diaphragm 211 is connected to the housing of the vibration sound generating unit 100 or the magnetic circuit system 1, the dome 212 is disposed on the diaphragm 211, and the end of the voice coil 22 away from the magnetic circuit system 1 is connected to the dome 212.

As shown in fig. 4 to 6, the second vibration system 3 may vibrate along a second direction perpendicular to the first direction, the second vibration system 3 may include an elastic connection member 31 and a vibrator assembly 32, two ends of the elastic connection member 31 are respectively connected with the vibrator assembly 32 and a second end of the fixing assembly, the vibrator assembly 32 includes a balancing weight 321 and a driving coil 322 disposed on the balancing weight 321, and the magnetic circuit system 1 is disposed corresponding to the driving coil 322 to drive the vibrator assembly 32 to vibrate.

Specifically, the first vibration system 2 may vibrate in the vertical y-direction, and the second vibration system 3 may 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 one end of the voice coil 22, far away from the diaphragm assembly 21, in the first vibration system 2 can be inserted into the magnetic gap 1a, so that the magnetic circuit system 1 can drive the first vibration system 2 to vibrate along the first direction. In addition, the magnetic circuit system 1 is further disposed corresponding to the driving coil 322 of the second vibration system 3, that is, the magnetic circuit system 1 may further drive the driving coil 322 to drive the balancing weight 321 to vibrate along the second direction, thereby implementing the second direction vibration of the second vibration system 3.

One end of the elastic connecting piece 31 of the second vibration system 3 is connected with the vibrator assembly 32, and the other end of the elastic connecting piece 31 is connected with the fixing assembly. That is, the other end of the elastic connection member 31 may be connected to the bracket or the magnetic circuit system 1. It should be noted that, the support may be a separate component that is set independently of the magnetic circuit system 1, and the support may also be formed by extending a part of the magnetic circuit system 1, that is, the support may also be formed as an integral part with the magnetic circuit system 1, and may be set selectively according to the actual design and the use requirement, which is not particularly limited in the present invention.

It can be understood that, in general, a part of the magnetic field of the magnetic circuit 1 of the speaker is used to drive the voice coil 22 to vibrate and sound, and the magnetic circuit 1 is also correspondingly arranged with the driving coil 322 of the second vibration system 3 by arranging the magnetic gap 1a corresponding to the first vibration system 2 in the magnetic circuit 1, so that the part of the magnetic field of the magnetic circuit 1 in the first vibration system 2 can be used as the magnetic field of the second vibration system 3, the magnetic field utilization rate of the magnetic circuit 1 can be improved, a set of magnetic circuit 1 is saved, the production cost is reduced, and in addition, the assembly space occupied by a set of magnetic circuit 1 can be saved, thereby meeting the miniaturization and light and thin design of the vibration sound monomer 100.

Moreover, the two ends of the elastic connecting piece 31 in the second vibration system 3 are respectively connected with the vibrator assembly 32 and the fixing assembly, and the vibrator assembly 32 and the fixing assembly are parts of the vibration sounding monomer 100, so that the vibration sounding monomer 100 can be formed into an independent functional unit, namely, when the vibration sounding monomer 100 can be used as a complete and independent functional unit to be fixed in a shell of the vibration sounding module, when the model of the vibration sounding module changes, only the size and the shape of the shell of the vibration sounding module are adjusted, and the vibration sounding monomer 100 is not required to be changed, thereby realizing the modularization and standardization design of the vibration sounding monomer 100 and greatly improving the applicability of the vibration sounding monomer 100.

According to the vibration sounding unit 100 of the first aspect of the embodiment of the present invention, the 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 further provided corresponding to the driving coil 322 of the second vibration system 3, so that a part of the magnetic field of the magnetic circuit system 1 in the first vibration system 2 can be used as the magnetic field of the second vibration system 3, the magnetic field utilization rate of the magnetic circuit system 1 can be improved, a set of magnetic circuit system 1 is saved, the production cost is reduced, and in addition, the assembly space occupied by a set of magnetic circuit system 1 can be saved, thereby meeting the miniaturization and light-weight design of the vibration sounding unit 100. Moreover, the two ends of the elastic connecting piece 31 in the second vibration system 3 are respectively connected with the vibrator assembly 32 and the fixing assembly, so that the vibration sounding unit 100 can be formed into an independent functional unit, modularization and standardization of the vibration sounding unit 100 can be realized, and applicability of the vibration sounding unit 100 is greatly improved.

According to some embodiments of the present invention, two ends of the elastic connection member 31 are respectively connected to the vibrator assembly 32 and the bracket, the bracket has a mounting portion (not shown) extending to the second end of the fixing assembly, and the elastic connection member 31 is fixedly connected to the mounting portion, so that the vibration sounding unit 100 can be modularized and standardized, the mounting portion of the bracket can suspend the vibrator assembly 32 through the elastic connection member 31, and the driving coil 322 can drive the balancing weight 321 to smoothly vibrate along the second direction under the action of the magnetic force of the magnetic circuit system 1.

According to some embodiments of the present invention, both ends of the elastic connection member 31 may be connected to the vibrator assembly 32 and the magnetic circuit system 1, respectively, so that not only can the modular and standardized design of the vibration sound generating unit 100 be achieved, but also the structural design of the vibration sound generating unit 100 can be simplified, and the magnetic circuit system 1 may suspend the vibrator assembly 32 by being connected to the elastic connection member 31.

As shown in fig. 4 to 6, according to some embodiments of the present invention, the magnetic circuit system 1 may include a magnetic yoke 13, a central magnetic portion 11 and a side magnetic portion 12 respectively disposed on the magnetic yoke 13, the side magnetic portion 12 is disposed on the outer side of the central magnetic portion 11 and is spaced from the central magnetic portion 11 to define a magnetic gap 1a, and a side of the voice coil 22 away from the diaphragm assembly 21 may be inserted into the magnetic gap 1a, so that the voice coil 22 may vibrate the diaphragm assembly 21 along a first direction under the action of a magnetic induction wire in the magnetic gap 1 a.

In some embodiments of the present invention, the side magnetic portion 12 may include a side magnet 121 and a side magnetic conductive plate 122 disposed on a side of the side magnet 121 remote from the second vibration system 3, the side magnetic conductive plate 122 having a mounting portion (not shown) extending to the second end of the fixing assembly, and the elastic connection member 31 is fixedly connected to the mounting portion, so that the side magnetic conductive plate 122 may not only function to collect magnetic induction lines in the side magnetic portion 12, but also the side magnetic conductive plate 122 may be used to fix the elastic connection member 31, thereby simplifying the structural design of the vibration sounding unit 100 and making the structural design of the vibration sounding unit 100 more compact.

In other embodiments of the present invention, the elastic connecting piece 31 may be fixedly connected to the side of the magnetic circuit 1, for example, the elastic connecting piece 31 may be fixedly connected to the side of the side magnet 121, and the elastic connecting piece 31 may be fixedly connected to the side of the side magnetic plate 122, so that the structural design of the vibration sounding unit 100 may be simplified, and the structural design of the vibration sounding unit 100 may be more compact.

As shown in fig. 10 to 11, in some embodiments of the present invention, the elastic connection member 31 is connected to the magnetic yoke 13, and it is understood that the magnetic yoke 13 is disposed on a side of the magnetic circuit system 1 near the vibrator assembly 32, and the elastic connection member 31 is connected to the magnetic yoke 13, so that the elastic connection member 31 can be conveniently fixed, and practical operation is convenient.

In some embodiments of the present invention, the magnetic yoke 13 may include a body portion 131 and first supporting frames 133 disposed at two ends of the body portion 131, one end of the elastic connecting member 31 is connected with the first supporting frames 133, and the other end of the elastic connecting member 31 is connected with the balancing weight 321, so that the body portion 131 may be used to support the central magnetic portion 11 and the side magnetic portion 12, and the first supporting frames 133 may be used to support and connect the elastic connecting member 31.

As shown in fig. 14, according to some embodiments of the present invention, a side portion of the body portion 131 of the magnetic yoke 13 extending in the second direction is provided with a limiting portion 133 extending toward the second vibration system 3, a side portion of the weight 321 extending in the second direction is provided with a limiting groove 321b for accommodating the limiting portion 133, and a width of the limiting groove 321b is greater than a width of the limiting portion 133 in the second direction, so that the weight 321 can move in a width direction of the limiting groove 321b and the limiting portion 133 can limit the weight 321, thereby preventing the vibration sounding unit 100 from being damaged due to too large vibration amplitude of the vibrator assembly 32 when the vibration sounding unit 100 collides or falls.

In the specific example shown in fig. 10 to 11, the first support 133 may be formed in a plate-shaped structure, one end of the first support 133 is connected with the body portion 131, and the other end of the first support 133 extends in a first direction toward a direction away from the body portion 131, whereby the first support 133 may define an installation space with the elastic connection member 31, facilitating installation and fixation of the elastic connection member 31. Alternatively, the first support frame 133 and the body 131 may be formed as an integrally formed structure, such as an integrally stamped part, etc., and the first support frame 133 and the body 131 may be formed as a separate structure, and the first support frame 133 and the body 131 may be fixed together by welding. Alternatively, the first supporting frame 133 and the body 131 may be made of the same material, and the first supporting frame 133 and the body 131 may be made of different materials. For example, the body 131 may be made of a high magnetic conductive material (e.g., cobalt alloy material), and the first support frame 133 may be made of a metal material, a plastic material, or the like.

In a specific embodiment of the present invention, the body 131 may be formed into a square structure, and the first supporting frames 133 are two and are respectively disposed at diagonal positions of the body 131, so that the two elastic connecting members 31 may be formed into corresponding mounting structures, so that the stress of the vibrator assembly 32 is more balanced, and the running stability of the second vibration system 3 is improved.

As shown in fig. 12 to 16, according to some embodiments of the present invention, the first support frame 134 may further have portions provided at the other two ends of the body portion 131, that is, the first support frame 134 may be formed in a ring-shaped structure, whereby the first support frame 134 disposed in a ring shape may increase the structural strength of the first support frame 134, and thus may improve the operational smoothness of the second vibration system 3. Moreover, the installation space of the elastic connecting piece 31 can be increased, so that the position fixed with the elastic connecting piece 31 can be selected according to the actual assembly requirement, and the assembly flexibility of the elastic connecting piece 31 is improved.

As shown in fig. 12 to 13, according to some embodiments of the present invention, the outer edge of the first support frame 134 does not exceed the outer edge of the first end of the vibration sound emitting unit 100 formed after the first vibration system 2 is fixed to the first end of the fixing member, that is, the outer edge of the first support frame 134 is flush with the outer edge of the fitting structure where the first vibration system 2 and the fixing member are assembled, or the outer edge of the first support frame 134 is located inside the outer edge of the fitting structure where the first vibration system 2 and the fixing member are assembled, thereby making the structure of the vibration sound emitting unit 100 more compact and saving the assembly space.

In other embodiments of the present invention, the outer edge of the first support frame 134 is substantially flush with the outer edge of the first end of the vibration sound generating unit 100 formed after the first vibration system 2 is fixed to the first end of the fixing assembly, so that the structure of the vibration sound generating unit 100 is compact, and the external profile of the vibration sound generating unit 100 is more regular, so that the assembly with other parts is facilitated.

As shown in fig. 12, 14 and 16, according to some embodiments of the present invention, a plurality of grooves 134a may be formed at an end of the first support frame 134 connected to the body 131, a plurality of protrusions 135 are formed at an edge of the body 131, and the protrusions 135 extend into the grooves 134a and are fixed at the bottom of the grooves 134a, so that the plurality of grooves 134a and the protrusions 135 are correspondingly matched, which can facilitate the matching of the first support frame 134 and the body 131, and improve the assembly efficiency, and the above arrangement can also improve the assembly firmness of the body 131 and the first support frame 134.

As shown in fig. 12 and 16, in some embodiments of the present invention, the support may include a second support frame 5, the outer periphery of the diaphragm assembly 21 is fixed to the second support frame 5, one side of the second support frame 5 adjacent to the second vibration system 3 is provided with an assembling portion 51 for installing the magnetic circuit system 1, which extends along the first direction, and the assembling portion 51 is inserted into the groove 134a, so that the assembling portion 51 is correspondingly matched with the groove 134a, which not only facilitates positioning the first support frame 134 and the second support frame 5, but also improves the assembly efficiency of the first support frame 134 and the second support frame 5. Alternatively, a plurality of grooves 134a may be provided on the first support frame 134, and fitting portions 51 provided in one-to-one correspondence with the plurality of grooves 134a may be provided on the second support frame 5, whereby the fitting firmness of the first support frame 134 and the second support frame 5 may be improved.

As shown in fig. 17, in some embodiments of the present invention, the magnetic circuit 1 includes a central magnetic portion 11 and a side magnetic portion 12, the central magnetic portion 11 and the side magnetic portion 12 are spaced apart to define a magnetic gap 1a, the side magnetic portion 12 includes a side magnet 121 and a side magnetic plate 122 disposed on a side of the side magnet 121 near the diaphragm assembly 21, the side magnetic plate 122 is formed into a ring structure, the side magnetic plate 122 includes a ring-shaped main body portion, the main body portion includes four connecting sides connected end to end, the side magnetic plate 122 further includes a first extension plate 1221 and a second extension plate 1222 disposed on each connecting plate, the first extension plate 1221 extends along a first direction, the second extension plate 1222 extends along a direction perpendicular to the first direction and is opposite to the side magnet 121, four corners of the main body portion are injection molded with plastic material portions 52, the plastic material portions 52 and the first extension plate 1221 are connected to form a ring-shaped structure together to form a second support frame 5, and an outer periphery of the diaphragm assembly 21 is fixedly connected to the second support frame 5.

Therefore, through the arrangement, the side magnetic conductive plate 122 and the plastic material part 52 form the second support frame 5 together, the second support frame 5 not only can play the role of the side magnetic conductive plate 122, the second support frame 5 can also fix the vibrating diaphragm assembly 21, but also the plastic material part 52 of the second support frame 5 can be assembled with the first support frame 134 to improve the structural strength, the structural arrangement is reasonable, and the structural compactness of the vibrating sound production unit 100 can be improved.

As shown in fig. 10 to 11, in one embodiment of the present invention, the elastic connection member 31 is provided with a first elastic connection portion 311 extending in a second direction and a second elastic connection portion 312 extending in a third direction perpendicular to the first direction and the second direction, respectively, wherein one of the first elastic connection portion 311 and the second elastic connection portion 312 is connected to the first support frame 133, and the other of the first elastic connection portion 311 and the second elastic connection portion 312 is connected to the weight 321.

Specifically, the first direction may be a vertical z direction, the second direction may be a horizontal x direction, the third direction may be a horizontal y direction, and the third direction is perpendicular to the first direction and the second direction, respectively. Wherein, each elastic connecting piece 31 includes a first elastic connecting portion 311 and a second elastic connecting portion 312 that are disposed at an included angle, the first elastic connecting portion 311 extends along a second direction, the second elastic connecting portion 312 extends along a third direction, one of the first elastic connecting portion 311 and the second elastic connecting portion 312 is connected with the first supporting frame 133, and the other of the first elastic connecting portion 311 and the second elastic connecting portion 312 is connected with the balancing weight 321. Thereby, the first elastic connection portion 311 and the second elastic connection portion 312 can cushion the vibrator assembly 32 from different positions and directions, so that smooth operation of the second vibration system 3 can be ensured.

In some embodiments of the present invention, the central magnetic portion 11 includes a central magnet, the side magnetic portion 12 includes a side magnet 121, the driving coil 322 may have two long sides 3221 disposed opposite to each other, and the two long sides 3221 are disposed opposite to the central magnet and the side magnet 121 along the first direction, so that not only the central magnetic portion 11 and the side magnetic portion 12 may form a magnetic gap 1a disposed corresponding to the first vibration system 2, but also a part of the magnetic field in the magnetic circuit system 1 may act on the driving coil 322 in the second vibration system 3, so as to implement a structural design that the first vibration system 2 and the second vibration system 3 share one set of magnetic circuit system 1.

As shown in fig. 4 to 5, in some embodiments of the present invention, the central magnetic portion 11 includes a plurality of first sub-center magnets 111 spaced apart along the second direction, the magnetizing directions of two adjacent first sub-center magnets 111 are opposite, and the driving coil 322 has two long sides 3221 disposed opposite to each other, and the two long sides 3221 are disposed opposite to the two adjacent first sub-center magnets 111 along the first direction. Specifically, the present invention sets the plurality of first sub-center magnets 111 spaced apart along the second direction in the center magnetic part 11, and two long sides 3221 of the driving coil 322 are respectively opposite to two adjacent first sub-center magnets 111 along the first direction, so that a part of the magnetic field of the center magnetic part 11 in the first vibration system 2 can be used as the magnetic field of the second vibration system 3, the magnetic field utilization rate of the center magnetic part 11 can be improved, a set of magnetic circuit system 1 can be saved, and the production cost can be reduced.

As shown in fig. 4 to 5, in some embodiments of the present invention, at least three first sub-center magnets 111 are provided, two adjacent first sub-center magnets 111 are spaced apart to form a spacing portion 1b, the number of driving coils 322 is the same as that of the spacing portions 1b, and the center holes of the driving coils 322 are arranged in a one-to-one correspondence with the spacing portions 1 b. Specifically, the driving coils 322 may be formed in a flat shape, and the two long sides 3221 of the driving coils 322 are disposed on opposite sides of the central hole, and the number of the driving coils 322 is the same as the number of the spacers 1b, that is, one driving coil 322 is disposed between two adjacent first sub-center magnets 111. Thus, with the above arrangement, each driving coil 322 corresponds to a pair of the first sub-center magnets 111 arranged at intervals, and the first long side 3221 and the second long side 3221 can sufficiently cut the magnetic induction lines, whereby the vibration effect of the vibrator assembly 32 can be improved.

Alternatively, in 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. That is, two adjacent first sub-center magnets 111 may be disposed in abutment. In the case where the gap between the adjacent two first sub-center magnets 111 is equal to zero, the gap portion 1b therebetween may be the contact surface/point/line between the adjacent two first sub-center magnets 111. It is understood that, although the adjacent two first sub-center magnets 111 are disposed in abutment, a minute gap (the spacer 1 b) may be present in the adjacent two first sub-center magnets 111 due to the presence of assembly errors and material errors, and in another specific example of the present invention, the width of the spacer 1b may be 0.05mm±0.02mm in the second direction.

By arranging the adjacent two first sub-center magnets 111 in close contact with each other, the magnet size and volume can be increased, and the magnetic field strength can be increased, as compared with the case where the adjacent two first sub-center magnets 111 have a wider gap.

In addition, since the magnets having different magnetizing directions are assembled in the normal case, for example, in the case of three first sub-center magnets 111, two first sub-center magnets 111 positioned at both end positions are fixed first, and then the first sub-center magnets 111 positioned at the intermediate position are inserted into an assembly space defined between the two first sub-center magnets 111 positioned at both end positions. Therefore, in the case where the adjacent first sub-center magnets 111 are disposed in close contact, the first sub-center magnets 111 in the intermediate position do not need to be precisely positioned, the assembly process of the center magnetic portion 11 is simplified, and the assembly efficiency is improved. Moreover, because the three first sub-center magnets 111 are arranged in an abutting mode, glue used for fixing the first sub-center magnets 111 in the rear assembly can overflow to the periphery of the magnets during assembly, and then overflow into a tiny gap between two adjacent first sub-center magnets 111, the two adjacent first sub-center magnets 111 can be bonded together, and therefore the three first sub-center magnets 111 can be formed into a whole through bonding, the structural firmness of the central magnetic part 11 is greatly improved, and when products fall and collide, the first sub-center magnets 111 are not easy to loose and fall.

In a specific example of the present invention, the driving coil 322 may further include two short sides 3222 disposed opposite to each other, the two short sides 3222 are disposed on two sides of the long side 3221 in the length direction, and 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 central hole, and each central hole is disposed in a one-to-one correspondence with each spacer 1b along the first direction.

As shown in fig. 4-5, in some embodiments of the present invention, the side magnet 12 may include a side magnet 121, wherein the side magnet 121 and the plurality of first sub-center magnets 111 are magnetized along a first direction, and the magnetizing directions between the adjacent side magnet 121 and the first sub-center magnets 111 and between the adjacent two first sub-center magnets 111 are opposite. For example, the first direction may be a vertical z direction, that is, the side magnet 121 and the plurality of first sub-center magnets 111 are each magnetized in the vertical direction, one of the adjacent two first sub-center magnets 111 and between the adjacent side magnet 121 and the first sub-center magnet 111 is magnetized in the top-down direction, and the other of the adjacent two first sub-center magnets 111 and between the adjacent side magnet 121 and the first sub-center magnet 111 is magnetized in the bottom-up direction. Thus, by the above arrangement, the voice coil 22 can be made to sufficiently cut the magnetic induction lines in the magnetic gap 1a formed between the side magnetic portion 12 and the center magnetic portion 11, and the driving coil 322 can be made to sufficiently cut the magnetic induction lines in the spacer portion 1b formed by the adjacent two first sub-center magnets 111, and the sound emission and vibration effect of the vibration sound emitting unit 100 can be ensured.

As shown in fig. 4 to 5, in some embodiments of the present invention, the central magnetic portion 11 further includes a central magnetic conductive plate 113, and a side of the plurality of first sub-central magnets 111, which is far from the second vibration system 3, is connected to the central magnetic conductive plate 113, and the central magnetic conductive plate 113 not only can function as a concentrated magnetic induction line, but also can assemble the plurality of first sub-central magnets 111 together, so as to facilitate installation and fixation of the plurality of first sub-central magnets 111.

As shown in fig. 5, in some embodiments of the present invention, the magnetic yoke 13 includes a body portion 131 and a hollow hole 132 disposed in the body portion 131, where the side magnetic portion 12 and the first sub-center magnet 111 disposed at two end positions are disposed in the body portion 131, and the hollow hole 132 is disposed at least partially opposite to the driving coil 322 along the first direction. Specifically, one end of the plurality of first sub-center magnets 111 may be connected to the center magnetic conductive plate 113, and the other end of the first sub-center magnet 111 located at both ends may be fixed to the main body 131, whereby the magnetic conductive yoke 13 may not only fix the side magnetic portion 12 and the center magnetic portion 11, but may also have a magnetism collecting effect, and may secure a magnetic field strength corresponding to the first vibration system 2. Through set up the fretwork hole 132 on body portion 131, the fretwork hole 132 can be relative with partial driving coil 322, also can be relative with whole driving coil 322, can ensure from this that driving coil 322 can cut the magnetic induction line smoothly to can ensure the vibration effect of second vibration system 3.

Alternatively, the number of the driving coils 322 may be plural, the number of the hollow holes 132 may be plural, and the hollow holes 132 are disposed corresponding to the driving coils 322, so that the processing procedure of the hollow holes 132 may be simplified, and the processing efficiency may be improved. Optionally, the driving coils 322 may be multiple, the hollow holes 132 may also be multiple, and the multiple hollow holes 132 are set in one-to-one correspondence with the multiple driving coils 322, so that the open area of the magnetic yoke 13 may be relatively reduced, thereby not only improving the structural strength of the magnetic yoke 13, but also improving the magnetism gathering effect of the magnetic yoke 13.

In some embodiments of the present invention, the projections of the other first sub-center magnets 111 located between the first sub-center magnets 111 at both ends in the first direction are located inside the edge of the hollowed hole 132, so that the number of magnetic induction lines passing through the hollowed hole 132 can be ensured, and thus the vibration effect of the second vibration system 3 can be ensured.

Further, along the first direction, the other first sub-center magnets 111 located between the first sub-center magnets 111 at two ends extend into the hollow hole 132, so that the distance between the central magnetic portion 11 and the driving coil 322 can be reduced, the magnetic induction line strength acting on the driving coil 322 can be increased, and the vibration effect of the second vibration system 3 can be improved.

In some embodiments of the present invention, a portion of the first sub-center magnet 111 located at both end positions may be provided to the body portion 131, and another portion of the first sub-center magnet 111 located at both end positions is provided opposite to the hollowed-out hole 132, whereby the number of magnetic induction lines passing through the hollowed-out hole 132 may be secured, and thus the vibration effect of the second vibration system 3 may be secured.

The vibration sounding monomer 100 according to an embodiment of the present invention is described in detail below with reference to fig. 2, 5 and 7.

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

Wherein, the first vibration system 2 and the second vibration system 3 are respectively arranged at two opposite sides of the magnetic circuit system 1. The magnetic circuit 1 includes a magnetic yoke 13, a central magnetic portion 11 and a side magnetic portion 12 provided on the magnetic yoke 13, the side magnetic portion 12 being provided outside the central magnetic portion 11, and the central magnetic portion 11 and the side magnetic portion 12 being provided at a distance from each other to define a magnetic gap 1a. The central magnetic portion 11 includes three first sub-center magnets 111 and a central magnetic conductive plate 113, the three first sub-center magnets 111 are distributed at intervals along the second direction (horizontal x direction), one end of each first sub-center magnet 111, which is far away from the second vibration system 3, is connected to the central magnetic conductive plate 113, and two adjacent first sub-center magnets 111 are disposed at intervals to form a spacer 1b. The side magnet portion 12 includes a side magnet 121 and a side magnetic conductive plate 122 disposed on a side of the side magnet 121 away from the second vibration system 3, wherein the side magnet 121 and the plurality of first sub-center magnets 111 are magnetized along a first direction, and magnetizing directions between the adjacent side magnet 121 and the first sub-center magnets 111 and between the adjacent two first sub-center magnets 111 are opposite. The magnetic yoke 13 includes a main body 131 and a hollow hole 132 formed in the main body 131, the side magnets 121 and the first sub-center magnets 111 located at two ends are all disposed in the main body 131, and the first sub-center magnets 111 located at the middle position extend 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 provided on the diaphragm 211, one end of the voice coil 22 is fixed on the dome 212, and the other end of the voice coil 22 is inserted into the magnetic gap 1 a. The side magnetic plate 122 includes a first extending plate 1221 extending horizontally and a second extending plate 1222 extending vertically, the first extending plate 1221 is disposed on a side of the side magnet 121 away from the second vibration system 3, one end of the second extending plate 1222 is connected to the first extending plate 1221, the other end of the second extending plate 1222 extends in the first direction, and both ends of the diaphragm 211 are fixed to the second extending plate 1222. The ring-folded portion of the diaphragm 211 extends in the first direction toward the direction close to the side magnetic portion 12, and the first extension plate 1221 is provided with a recess 122a corresponding to the ring-folded portion.

The second vibration system 3 vibrates along the second direction, the second vibration system 3 includes elastic connection piece 31 and vibrator subassembly 32, the body portion 131 of magnetic yoke 13 forms square structure, a pair of diagonal position of body portion 131 is equipped with first support frame 133, first support frame 133 forms platy structure, the one end and the body portion 131 of first support frame 133 are connected, the other end of first support frame 133 extends along the direction that the body portion 131 was kept away from in the first direction, the both ends of elastic connection piece 31 are connected with vibrator subassembly 32 and first support frame 133 respectively, from this magnetic circuit 1 can suspend vibrator subassembly 32, vibrator subassembly 32 includes balancing weight 321 and locates two drive coils 322 of balancing weight 321, every drive coil 322 all has two long limit 3221 of relative setting and two minor face 3222 of relative setting, two minor face 3222 are located the both sides of the length direction of long limit 3221, the both ends of every minor face 3222 are connected with long limit 3221 respectively, thereby, two minor face 3222 and two major face 3221 cooperate together and define the centre bore, along the first direction, every centre bore sets up two adjacent magnet 111 with every interval portion one-to-one with two corresponding minor face 3221.

As shown in fig. 3 and 9, in some embodiments of the present invention, the central magnetic portion 11 may further include a central magnetic conductive plate 113, one side of the plurality of first sub-central magnets 111 away from the second vibration system 3 is connected to the central magnetic conductive plate 113, the magnetic conductive yoke 13 includes a body portion 131 and a hollow hole 132 formed in the body portion 131, one side of the side magnetic portion 12 near the second vibration system 3 is formed in the body portion 131, the central magnetic conductive plate 113 may include a support portion 1131 and an extension portion 1132 formed on an outer side of the support portion 1131, the extension portion 1132 extends along the first direction, two ends of the extension portion 1132 are respectively connected to the support portion 1131 and the body portion 131, the support portion 1131 is disposed opposite to the hollow hole 132, and the plurality of first sub-central magnets 111 are all fixed to the support portion 1131.

Specifically, the central magnetically permeable plate 113 may not only function as a concentrated magnetic induction line, but may also assemble a plurality of first sub-center magnets 111 together. The central magnetically permeable plate 113 includes a support portion 1131 extending in the second direction and an extension portion 1132 extending in the first direction, and one end of the plurality of first sub-center magnets 111 may be connected to the support portion 1131. The two ends of the extension portion 1132 are connected to the support portion 1131 and the extension portion 1132, respectively, so that the yoke 13 can support not only the side magnetic portion 12 but also the center magnetic portion 11 through the extension portion 1132. The body portion 131 of the magnetic yoke 13 is provided with the hollow hole 132, the other ends of the plurality of first sub-center magnets 111 may be opposite to the hollow hole 132, the hollow hole 132 may be opposite to a part of the driving coil 322 or may be opposite to the whole driving coil 322, thereby ensuring that the driving coil 322 can smoothly cut the magnetic induction line, and thus ensuring the vibration effect of the second vibration system 3.

As shown in fig. 3, in some embodiments of the present invention, the extension portion 1132 is located at opposite sides of the support portion 1131 along a third direction perpendicular to the first direction and the second direction, respectively, and the side magnetic portion 12 is spaced apart from the extension portion 1132 to define a partial magnetic gap 1a. Specifically, the second direction and the third direction may be located in the same horizontal plane, for example, the second direction may be a horizontal x-direction, the third direction may be a horizontal y-direction, and the first direction may be a vertical z-direction. The number of the two extending portions 1132 may be two, and the two extending portions 1132 may be disposed on two sides of the supporting portion 1131 in the third direction, so that the supporting portion 1131 and the magnetic yoke 13 may be connected together, and the structural design is relatively simple. The side magnetic portion 12 may define a part of the magnetic gap 1a at a distance from the extension portion 1132, and the side magnetic portion 12 may define another part of the magnetic gap 1a at a distance from the first sub-center magnet 111 and the center magnetically permeable plate 113 at both end positions.

In some embodiments of the present invention, the projections of the plurality of first sub-center magnets 111 along the second direction are located inside the edge of the hollowed hole 132, so that the number of magnetic induction lines passing through the hollowed hole 132 can be ensured, and thus the vibration effect of the second vibration system 3 can be ensured.

Further, along the first direction, the plurality of first sub-center magnets 111 extend into the hollow holes 132, so that the distance between the center magnetic portion 11 and the driving coil 322 can be reduced, the magnetic induction line strength acting on the driving coil 322 can be increased, and the vibration effect of the second vibration system 3 can be improved.

The vibration sounding monomer 100 according to an embodiment of the present invention is described in detail below with reference to fig. 3, 4 and 9.

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

Wherein, the first vibration system 2 and the second vibration system 3 are respectively arranged at two opposite sides of the magnetic circuit system 1. The magnetic circuit 1 includes a magnetic yoke 13, a central magnetic portion 11 and a side magnetic portion 12 provided on the magnetic yoke 13, the side magnetic portion 12 being provided outside the central magnetic portion 11, and the central magnetic portion 11 and the side magnetic portion 12 being provided at a distance from each other 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 portion 1131 extending in a second direction (horizontal x-direction) and an extension portion 1132 extending in a first direction (vertical z-direction), both ends of the extension portion 1132 are respectively connected with the support portion 1131 and the extension portion 1132, and the extension portion 1132 is two and provided at both ends of the support portion 1131 in a third direction (horizontal y-direction). The three first sub-center magnets 111 are spaced apart along the second direction, one end of each first sub-center magnet 111 away from the second vibration system 3 is connected to the support portion 1131, and two adjacent first sub-center magnets 111 are spaced apart to form a spacing portion 1b. The side magnet portion 12 includes a side magnet 121 and a side magnetic conductive plate 122 disposed on a side of the side magnet 121 away from the second vibration system 3, wherein the side magnet 121 and the plurality of first sub-center magnets 111 are magnetized in a first direction, and magnetizing directions between the adjacent side magnet 121 and the first sub-center magnets 111 and between the adjacent two first sub-center magnets 111 are opposite. The magnetic yoke 13 includes a main body 131 and a hollow hole 132 formed in the main body 131, the side magnet 121 is disposed in the main body 131, and two ends of the extension portion 1132 are connected to the support portion 1131 and the main body 131, respectively. Along the second direction, the plurality of first sub-center magnets 111 are opposite to the hollow holes 132.

As shown in fig. 1 and 8, in some embodiments of the present invention, the side magnetic part 12 may include side magnets 121, the center magnetic part 11 further includes second sub-center magnets 112 disposed at both sides of a third direction of the plurality of first sub-center magnets 111, the third direction being perpendicular to the first direction and the second direction, respectively, the side magnets 121, the first sub-center magnets 111 and the second sub-center magnets 112 are magnetized in the first direction, and magnetizing directions between adjacent side magnets 121 and the first sub-center magnets 111 and between adjacent side magnets 121 and between adjacent first sub-center magnets 111 are opposite, and in the third direction, magnetizing directions between adjacent side magnets 121 and the second sub-center magnets 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 a horizontal x-direction, the third direction may be a horizontal y-direction, and the first direction may be a vertical z-direction. Wherein the central magnetic portion 11 includes a plurality of first sub-central magnets 111 arranged at intervals in the second direction and second sub-central magnets 112 arranged at intervals in the third direction. The side magnets 121, the first sub-center magnets 111 and the second sub-center magnets 112 are all magnetized along a first direction, for example, the first direction may be a vertical z direction, and along a second direction, one of the adjacent side magnets 121 and the first sub-center magnets 111 and one of the adjacent two first sub-center magnets 111 is magnetized along a top-down direction, and the other of the adjacent side magnets 121 and the first sub-center magnets 111 and the other of the adjacent two first sub-center magnets 111 is magnetized along a bottom-up direction. In the third direction, one of the adjacent side magnets 121 and the second sub-center magnet 112 is magnetized in the top-down direction, and the other of the adjacent side magnets 121 and the second sub-center magnet 112 is magnetized in the bottom-up direction.

Thus, by the above arrangement, the plurality of first sub-center magnets 111 arranged at intervals along the second direction and the plurality of second sub-center magnets 112 arranged at intervals along the third direction can each cooperate with the side magnetic sections 12 to form a magnetic circuit, the missing of the edge portions of the center magnets is reduced as much as possible, and the effect of the edge portions of the center magnets on the center portions of the center magnets is small because the contribution of the edge portions of the center magnets to the magnetic field strength in the magnetic gap 1a is maximum, so that the influence on the magnetic field in the magnetic gap 1a is reduced as much as possible, and the influence on the sound producing effect is ensured to be minimal while the vibration producing unit 100 of the present invention increases the vibration effect. Thus, the voice coil 22 can be made to sufficiently cut the magnetic induction lines in the magnetic gap 1a formed between the side magnetic portion 12 and the center magnetic portion 11, and the driving coil 322 can be made to sufficiently cut the magnetic induction lines in the space portion 1b formed by the adjacent two first sub-center magnets 111, and the sound and vibration effects of the vibration sound generating unit 100 can be ensured.

In some embodiments of the present invention, the central magnetic portion 11 further includes a central magnetic conductive plate 113, one sides of the plurality of first sub-center magnets 111 and the plurality of second sub-center magnets 112 away from the second vibration system 3 are connected to the central magnetic conductive plate 113, the magnetic conductive yoke 13 includes a body portion 131 and a hollow hole 132 disposed in the body portion 131, and the side magnets 121 and the second sub-center magnets 112 are disposed in the body portion 131, and the hollow hole 132 is disposed at least partially opposite to the driving coil 322 along the first direction.

Specifically, the central magnetically permeable plate 113 may not only function as a concentrated magnetic induction line, but also may assemble a plurality of first and second sub-center magnets 111 and 112 together. The side magnet 121 and the second sub-center magnet 112 can be fixed to the main body 131 of the magnetic yoke 13, so that the center magnetic part 11 and the side magnetic part 12 can be supported by the magnetic yoke 13, and the magnetic field strength corresponding to the first vibration system 2 can be ensured. The hollow hole 132 is formed in the body 131 of the magnetic yoke 13, and the hollow hole 132 may be opposite to a part of the driving coil 322 or may be opposite to the whole driving coil 322, so that the driving coil 322 may be ensured to smoothly cut the magnetic induction line, and thus the vibration effect of the second vibration system 3 may be ensured.

In some embodiments of the present invention, the projections of the plurality of first sub-center magnets 111 along the first direction may be located inside the edge of the hollowed hole 132, so that the number of magnetic induction lines passing through the hollowed hole 132 may be ensured, and thus the vibration effect of the second vibration system 3 may be ensured.

Further, the number of the driving coils 322 may be plural, the number of the hollow holes 132 may be plural, and the hollow holes 132 are correspondingly arranged with the driving coils 322, so that the processing procedure of the hollow holes 132 may be simplified, and the processing efficiency may be improved. Of course, the driving coils 322 may be multiple, the hollow holes 132 may be multiple, and the hollow holes 132 and the driving coils 322 are arranged in one-to-one correspondence, so that the open area of the magnetic yoke 13 can be relatively reduced, and the magnetism gathering effect and the structural strength of the magnetic yoke 13 can be improved.

A vibration sounding monomer 100 according to an embodiment of the present invention will be described in detail with reference to fig. 1, 4 and 8.

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

The central magnetic portion 11 includes three first sub-center magnets 111, two second sub-center magnets 112, and a central magnetic conductive plate 113, the three first sub-center magnets 111 are distributed at intervals along the second direction (horizontal x direction), the two second sub-center magnets 112 are disposed on both sides of the third direction (horizontal y direction) of the three first sub-center magnets 111, one end of each of the first sub-center magnets 111 and the second sub-center magnets 112, which is far from the second vibration system 3, is connected with the central magnetic conductive plate 113, and two adjacent first sub-center magnets 111 are disposed at intervals to form a spacer 1b. The side magnet 12 includes a side magnet 121 and a side magnetic conductive plate 122 disposed on a side of the side magnet 121 far away from the second vibration system 3, the magnetic conductive yoke 13 includes a body 131 and a hollow hole 132 disposed on the body 131, and the side magnet 121 and the second sub-center magnet 112 are disposed on the body 131. Along the first direction (vertical z direction), the plurality of first sub-center magnets 111 are opposite to the hollowed-out holes 132. The side magnets 121, the first sub-center magnets 111 and the second sub-center magnets 112 are magnetized in the first direction, the adjacent side magnets 121 and the first sub-center magnets 111 and the adjacent two first sub-center magnets 111 are magnetized in opposite directions in the second direction, and the adjacent side magnets 121 and the second sub-center magnets 112 are magnetized in opposite directions in the third direction.

As shown in fig. 1 to 3, according to some embodiments of the present invention, an assembly hole 321a is formed on a side of the balancing weight 321 close to the magnetic circuit system 1, and the driving coil 322 is embedded in the assembly hole 321a, so that the structure of the vibrator assembly 32 can be more compact. Alternatively, a fixing glue may be disposed in the assembly hole 321a, and the driving coil 322 may be fixed in the assembly hole 321a by the fixing glue. The structural design of the weight 321 is not limited to this. For example, the weight 321 may not be provided with the fitting hole 321a, and the driving coil 322 may be adhered to the outer surface of the weight 321.

As shown in fig. 14, according to some embodiments of the present invention, the weight 321 is provided with a mounting hole 321a penetrating along the first direction, the driving coil 322 is located in the mounting hole 321a, the second vibration system 3 further includes a support back 34, the support back 34 is disposed on a side of the weight 321 away from the first vibration system 2 and opposite to the mounting hole 321a, and the driving coil 322 is supported on the support back 34. It can be appreciated that, compared with the blind hole, the assembly hole 321a penetrating the counterweight 321 along the first direction can reduce the processing difficulty of the assembly hole 321a, and then the driving coil 322 can be effectively supported by the support back plate 34, so that the normal operation of the second vibration system 3 is ensured.

In some embodiments of the present invention, the support backplate 34 may be a magnetic conductive member, so that the support backplate 34 may function to gather magnetic induction lines, so that the intensity of the magnetic field acting on the driving coil 322 may be increased, so that the vibration effect of the second vibration system 3 may be improved.

In some embodiments of the present invention, the support back plate 34 closes part of the assembly hole 321a so that the wire inlet end and/or the wire outlet end of the driving coil 322 are exposed, that is, the surface area of the support back plate 34 is smaller than the open area of the assembly hole 321a, so that part of the assembly hole 321a and the driving coil 322 are exposed, the wire inlet end of the driving coil 322 can be exposed, the wire outlet end of the driving coil 322 can be exposed, and the wire inlet end and the wire outlet end of the driving coil 322 can be exposed at the same time, so that the thickness of the mating structure between the support back plate 34 and the driving coil 322 along the first direction can be reduced, thereby playing a role of thinning.

As shown in fig. 12 and 14, according to some embodiments of the present invention, the vibration sounding unit 100 may further include a cover plate 4, the cover plate 4 being located at a side of the second vibration system 3 remote from the first vibration system 2, the cover plate 4 being connected with an end of the first support frame 134 remote from the body portion 131 to define an installation space of the second vibration system 3, the cover plate 4 may function to improve structural strength of the fixing assembly, so that smooth operation of the second vibration system 3 may be ensured. Alternatively, the cover plate 4 and the first supporting frame 134 may be separately provided, and the cover plate 4 may be connected to the first supporting frame 134 by laser welding or bonding. Of course, the cover plate 4 and the first supporting frame 134 may be formed as an integral part, and may be formed in an integral stamping forming manner, so as to simplify the assembly process and improve the assembly efficiency.

As shown in fig. 6, according to some embodiments of the present invention, the plurality of magnetic gaps 1a may be plural, the plurality of magnetic gaps 1a are coaxially disposed and sequentially spaced from inside to outside, and the plurality of voice coils 22 may be plural, and the plurality of voice coils 22 are disposed in one-to-one correspondence with the plurality of magnetic gaps 1a, so that the first vibration system 2 may be formed in a structure in which the plurality of voice coils 22 synchronously drive the diaphragm assembly 21, thereby improving the sound production sensitivity and the sound production loudness of the first vibration system 2 and improving the sound production effect of the vibration sound production unit 100.

In the specific embodiment shown in fig. 6, the magnetic circuit 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 disposed outside 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 disposed outside 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 ends of the first sub-voice coil 22a and the second sub-voice coil 22b are respectively connected to the diaphragm assembly 21, the other end of the first sub-voice coil 22a is inserted into the first sub-magnetic gap 1c, and the other end of the second sub-voice coil 22b is inserted into the second sub-magnetic gap 1d. Therefore, the first vibration system 2 can be formed into a structure that the double voice coils 22 synchronously drive one vibrating diaphragm assembly 21, so that the magnetic field utilization rate of the magnetic circuit system 1 can be improved, and the sounding sensitivity of the vibration sounding unit 100 can be improved. The driving coil 322 has two connecting sides disposed opposite to each other, and the two connecting sides are disposed opposite to the first central magnetic portion 11 and the second central magnetic portion 11, respectively, in the first direction.

In the above-mentioned structure in which the plurality of voice coils 22 synchronously drive the diaphragm assembly 21, the number of the voice coils 22 may be selected according to the actual use requirement, which is not limited in the present invention.

In some embodiments of the present invention, the first sub-center magnetic part 11a may include a first center magnet, the second sub-center magnetic part 11b may include a second center magnet provided at an outer circumference of the first center magnet, the side magnetic part 12 may include a side magnet 121 provided at an outer circumference of the second sub-center magnetic part 11b, and the first center magnet, the second center magnet, and the side magnet are magnetized in a first direction (vertical z direction) and magnetized in a second direction (horizontal x direction), and the magnetizing directions between adjacent first and second center magnets and between adjacent second center and side magnets 121 are opposite. Thus, by the above arrangement, the first and second sub-voice coils 22a and 22b can be made to sufficiently cut the magnetic induction lines in the first and second sub-magnetic gaps 1c and 1d, and also the driving coil 322 can be made to sufficiently cut the magnetic induction lines between the adjacent first and second sub-center magnetic portions 11a and 11b, and the sound emission and vibration effects of the vibration sound emitting unit 100 can be ensured.

Alternatively, the first central magnet may be set as one piece, the second central magnet includes four pieces and is disposed around the first central magnet, the side magnets 121 also include four pieces and are disposed outside the second sub-central magnetic portion 11b, and the four second central magnets are disposed in one-to-one correspondence with the four side magnets 121.

In some embodiments of the present invention, the second center magnets at both ends of the first center magnet in the second direction (e.g., the horizontal x-direction) are first magnets, the second center magnets at both ends of the first center magnet in the third direction (e.g., the horizontal y-direction) are second magnets, the third direction is perpendicular to the first direction (e.g., the vertical z-direction) and the second direction, respectively, and the volume of the first magnets is larger than the volume of the second magnets. It will be appreciated that since the long side 3221 of the driving coil 322 extends in 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 first center magnet in the second direction, and by providing the volume of the first magnets to be larger than the volume of the second magnets, the magnetic field strength acting on the driving coil 322 can be increased, and thus the vibration feeling of the vibration sounding unit 100 can be enhanced.

Further, the second sub-center magnetic portion 11a further includes a second center magnetic conductive plate disposed on a side of the second center magnet, which is close to the diaphragm assembly 211, and the second center magnetic conductive plate forms a closed ring structure, so that the second center magnetic conductive plate can play a role in balancing magnetic field strengths of the first magnet and the second magnet, thereby ensuring that magnetic field forces received by different sides of the first sub-voice coil 22a are relatively uniform, and improving vibration stability of the first vibration system 2.

In some embodiments of the present invention, the magnetic yoke 13 may include a body portion 131 and a hollow hole 132 disposed in the body portion 131, the hollow hole 132 is disposed opposite to at least a portion of the driving coil 322 along a first direction (for example, a vertical z direction), the side magnetic portion 12 and the second sub-center magnetic portion 11b are disposed in the body portion 131, the first sub-center magnetic portion 11a includes a first center magnet and a first center magnetic conductive plate, the first center magnetic conductive plate may include a support plate and an extension plate disposed outside the support plate, at least a portion of the extension plate extends along the first direction, two ends of the extension plate are respectively connected to the support plate and the body portion 131, the support plate is disposed opposite to the hollow hole 132, and the first center magnet is disposed in the support plate.

Specifically, the magnetically permeable yoke 13 may be used to support the first sub-center magnetic portion 11a, the second sub-center magnetic portion 11b, and the side magnetic portion 12. The second sub-center magnetic portion 11b and the side magnetic portion 12 are provided in the main body portion 131 of the magnetic yoke 13, and the first sub-center magnetic portion 11a is supported by the magnetic yoke 13 through the extension plate since the extension plate of the first center magnetic conductive plate is connected to the main body portion 131. It can be appreciated that, since the magnetic yoke 13 is provided with the hollowed hole 132 opposite to the driving coil 322 along the first direction, the hollowed hole 132 may be opposite to a part of the driving coil 322 or may be opposite to the whole driving coil 322, thereby ensuring that the driving coil 322 can smoothly cut the magnetic induction line, and thus ensuring the vibration effect of the second vibration system 3. Optionally, the support plate may extend horizontally, the first center magnet is disposed on a side of the support plate near the hollow hole 132, the extension plate may extend vertically, and two ends of the extension plate are respectively connected to the support plate and the body 131.

In some embodiments of the invention, the extension plates are located on opposite sides of the support plate in a third direction perpendicular to the first direction and the second direction, respectively, and the second sub-center magnetic part 11b is spaced apart from the support plate to define part of the first sub-magnetic gap 1c. Specifically, the second direction and the third direction may be located in the same horizontal plane, for example, the first direction may be a vertical y direction, the second direction may be a horizontal x direction, and the third direction may be a horizontal y direction. Wherein, the extension board can be two, and two extension boards can be located the both sides of the third direction of backup pad, can link together backup pad and magnetic yoke 13 from this, structural design is simpler. The second sub-center magnetic part 11b may be spaced apart from the support plate to define a part of the first sub-magnetic gap 1c, and the second sub-center magnetic part 11b may be spaced apart from both sides of the first center magnet in the second direction to define another part of the first sub-magnetic gap 1c.

In some embodiments of the present invention, the second sub-center magnetic part 11b may include second center magnets provided at the outer circumference of the first center magnet, the second center magnets provided at both sides of the third direction (e.g., the horizontal y direction) of the first sub-center magnetic part 11a are provided at the body part 131, and the second center magnets provided at both sides of the second direction (e.g., the horizontal x direction) of the first sub-center magnetic part 11a are opposite to the hollowed holes 132 along the first direction, whereby the area of the second center magnets provided opposite to the hollowed holes 132 may be increased, so that the number of magnetically induced wires acting on the driving coil 322 may be ensured, and the vibration effect of the second vibration system 3 may be ensured.

In some embodiments of the present invention, the second sub-center magnetic portion 11b may include a second center magnetic conductive plate disposed on a side of the second center magnet away from the body portion 131, where the second center magnetic conductive plate is formed in a ring structure and sleeved on an outer side of the support plate, so that the second center magnets disposed on an outer periphery of the first center magnet are all connected with a side of the second center magnetic conductive plate away from the diaphragm assembly 21, the second center magnets disposed on two sides of the third direction of the first sub-center magnetic portion 11a are disposed on the body portion 131, and bottoms of the second center magnets disposed on two sides of the second direction of the first sub-center magnetic portion 11a are opposite to the hollowed holes 132 along the first direction.

In some embodiments of the present invention, the projections of the first center magnet and the second center magnet located at both sides of the second direction (e.g., horizontal x-direction) of the first sub-center magnetic part 11a in the first direction (e.g., vertical z-direction) are located inside the edge of the hollowed hole 132, whereby the number of magnetic induction lines passing through the hollowed hole 132 can be ensured, and thus the vibration effect of the second vibration system 3 can be ensured.

Further, along the first direction, the first central magnet and the second central magnets located at two sides of the first sub-central magnetic portion 11a in the second direction extend into the hollow hole 132, so that the distance between the first sub-central magnetic portion 11a and the second sub-central magnetic portion 11b and the driving coil 322 can be reduced, the magnetic field strength acting on the driving coil 322 can be increased, and the vibration effect of the second vibration system 3 can be improved.

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, so that the structural design of the magnetic circuit system 1 can be simplified, and the assembly process can be simplified. For example, the first central magnetically permeable plate and the magnetically permeable yoke 13 may be formed as an integral stamping. It will be understood, of course, that the first central magnetically permeable plate and the magnetically permeable yoke 13 may be formed as separate pieces, and that the extension plate of the first central magnetically permeable plate and the body portion 131 of the magnetically permeable yoke 13 may be assembled together by laser welding.

As shown in fig. 14 to 15, according to some embodiments of the present invention, the second vibration system 3 may further include a flexible circuit board 33, the flexible circuit board 33 including a flexible board portion 331 and a first board portion 332 and a second board portion 333 provided at both ends of the flexible board portion 331, the first board portion 332 being fixed to the weight 321 and provided with an internal pad electrically connected to the driving coil 322, the second board portion 333 being located at an outer side of the fixed assembly and provided with an external pad electrically connected to the external circuit, the flexible board portion 331 including two connection portions opposing in a first direction and extending in a second direction, an extension length of the two connection portions in the second direction varying with vibration of the vibrator assembly 32.

Specifically, the flexible circuit board 33 may realize an electrical connection between the driving coil 322 and an external circuit. Since the first plate 332 is fixed to the weight 321, the first plate 332 moves synchronously with the vibrator assembly 32. By providing the flexible plate portion 331 between the first plate portion 332 and the second plate portion 333, the two connection portions of the flexible plate portion 331 can change their own lengths in synchronization with the reciprocation of the vibrator assembly 32, for example, when the vibrator assembly 32 vibrates leftwards, the length of the connection portion located above increases and the length of the connection portion located below decreases; when the vibrator assembly 32 vibrates to the right, the length of the connecting portion located above is reduced, the length of the connecting portion located below is increased, the flexible board portion 331 can be formed into a structure similar to a drag chain, the flexible circuit board 33 can be prevented from being broken when the vibrator assembly 32 vibrates reciprocally, and the design is ingenious.

The vibration and sound module according to the second aspect of the embodiment of the present invention includes a housing and the vibration and sound unit 100 according to the above-described embodiment of the present invention, the vibration and sound unit 100 is disposed in the housing, and the first end of the fixing component is connected to the inner wall of the housing, so that the vibration and sound unit 100 can be fixed in the housing, and the fixing component can suspend the vibrator assembly 32 in the second vibration system 3 in the housing.

It will be appreciated that in some embodiments, in the case where the diaphragm 211 of the first vibration system 2 is fixed to the first end surface of the fixing member, the first end surface of the fixing member is fixed to the diaphragm 211 and then connected to the inner wall of the housing. Alternatively, in some other embodiments, the diaphragm 211 and the front cover are sequentially connected to the end surface of the first end of the fixing component, and the front cover serves as a protection member, in this case, the first end of the fixing component fixes the diaphragm 211 and the front cover and then is connected to the inner wall of the housing.

In general, the vibration sounding unit 100 is disposed in a housing of the vibration sounding module, and divides an internal space of the housing into a front sound cavity and a rear sound cavity, the front sound cavity is communicated with a sound outlet on the housing to guide out sound, and the rear sound cavity is communicated with a space on the back of the diaphragm 211 for adjusting low-frequency performance of a product.

According to the vibration sounding module of the second aspect of the embodiment of the invention, by arranging the vibration sounding single body 100, the first vibration system 2 and the second vibration system 3 of the vibration sounding single body 100 share one set of magnetic circuit system 1, so that the structure is compact, and the volume of an acoustic cavity of the vibration sounding module can be increased; moreover, the elastic connection members 31 of the vibration sounding unit 100 are respectively connected with the fixing assembly and the vibrator assembly 32, so that modularization and standardization of design can be realized, and the assembly efficiency of the vibration sounding module can be improved.

An electronic device according to an embodiment of the third aspect of the present invention includes the vibration sound emitting module according to the above-described embodiment of the present invention. Alternatively, the electronic device may be a mobile phone, PAD, notebook computer, or the like.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between the two components. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A vibratory sounding cell comprising:

the fixing assembly comprises a bracket and a magnetic circuit system fixed on the bracket, and the magnetic circuit system is provided with a magnetic gap;

A first vibration system and a second vibration system, which are respectively arranged at two opposite sides of the fixed component and are respectively fixed at two opposite ends of the fixed component, wherein,

the first vibration system vibrates along a first direction, the first vibration system is fixed at a first end of the fixing assembly, the first vibration system comprises a vibrating diaphragm assembly and a voice coil, one end of the voice coil is connected with the vibrating 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 connecting piece and a vibrator assembly, two ends of the elastic connecting piece are respectively connected with the vibrator assembly and the second end of the fixing assembly, the vibrator assembly comprises a balancing weight and a driving coil arranged on the balancing weight, and the magnetic circuit system and the driving coil are correspondingly arranged to drive the vibrator assembly to vibrate;

the magnetic circuit system comprises a magnetic yoke facing one side of the second vibration system, the magnetic yoke comprises a body part and first supporting frames arranged at two ends of the body part, the first supporting frames and the body part are of split structures and are formed by different materials, one end of each elastic connecting piece is connected with the first supporting frames, and the other end of each elastic connecting piece is connected with the corresponding balancing weight.

2. The vibratory sounding unit of claim 1, wherein the first support frame is made of metal material, and the first support frame and the body are fixed together by means of a welded connection.

3. The vibration and sound producing unit according to claim 1, wherein the first support frame further has portions provided at the other two ends of the body portion, and the first support frame has a ring-like structure.

4. The vibrotactile element of claim 1, wherein an outer edge of the first support bracket does not exceed an outer edge of a first end of the vibrotactile element formed after the first vibration system is secured to the first end of the securing assembly;

or, the outer edge of the first support frame is substantially flush with the outer edge of the first end of the vibration sounding unit formed by the first vibration system after the first vibration system is fixed at the first end of the fixing assembly.

5. The vibration-sound-producing unit according to claim 1, wherein a side portion of the body portion of the yoke extending in the second direction is provided with a stopper portion extending toward the second vibration system direction, and a side portion of the weight extending in the second direction is provided with a stopper groove accommodating the stopper portion, and a width of the stopper groove is larger than a width of the stopper portion in the second direction.

6. The vibratory sound unit of claim 1 further comprising a cover plate positioned on a side of the second vibratory system remote from the first vibratory system, the cover plate being connected to an end of the first support frame remote from the body portion to define an installation space for the second vibratory system.

7. The vibration sounding unit according to claim 1, wherein one end of the first support frame connected with the body portion is provided with a plurality of grooves, the edge of the body portion is provided with a plurality of protruding portions, and the protruding portions extend into the grooves and are fixed at the bottoms of the grooves.

8. The vibration/sound producing unit according to claim 7, wherein the bracket includes a second support frame, the outer periphery of the diaphragm assembly is fixed to the second support frame, one side of the second support frame adjacent to the second vibration system is provided with an assembly portion extending in the first direction for mounting the magnetic circuit system, and the assembly portion is inserted into the groove.

9. The vibration/sound producing unit according to claim 8, wherein the magnetic circuit system includes a central magnetic portion and a side magnetic portion, the central magnetic portion and the side magnetic portion are disposed at intervals to define the magnetic gap, and the side magnetic portion includes a side magnet and a side magnetic conductive plate disposed on a side of the side magnet near the diaphragm assembly;

The side magnetic conduction plate is formed into an annular structure, the side magnetic conduction plate comprises an annular main body part, the main body part comprises four connecting edges connected end to end, the side magnetic conduction plate further comprises a first extending plate and a second extending plate which are arranged on each connecting edge, the first extending plates extend along the first direction, the second extending plates extend along the direction perpendicular to the first direction and are opposite to the side magnets, plastic material parts are injected at four corners of the main body part, and the plastic material parts and the first extending plates are connected to form the annular structure to jointly form the second support frame.

10. The vibration and sound unit according to claim 1, wherein the weight is provided with a mounting hole penetrating along a first direction, the driving coil is located in the mounting hole, the second vibration system further comprises a support back plate, the support back plate is located at one side of the weight away from the first vibration system and opposite to the mounting hole, and the driving coil is supported on the support back plate.

11. The vibratory sounding element of claim 10, wherein the support backplate is a magnetically permeable member;

And/or the supporting backboard seals part of the assembly hole so that the wire inlet end and/or the wire outlet end of the driving coil are exposed.

12. The vibration/sound producing unit according to claim 1, wherein the magnetic circuit system includes a center magnetic portion and a side magnetic portion provided on the yoke, respectively, the side magnetic portion being provided on an outer side of the center magnetic portion and being provided at an interval from the center magnetic portion to define the magnetic gap, the center magnetic portion including a center magnet, the side magnetic portion including a side magnet, the driving coil having two long sides provided opposite to each other, the two long sides being provided opposite to the center magnet and the side magnet, respectively, in the first direction.

13. The vibration sounding unit according to claim 1, wherein the magnetic circuit system comprises a central magnetic part and a side magnetic part which are respectively arranged on the magnetic yoke, the side magnetic part is arranged on the outer side of the central magnetic part and is arranged at intervals with the central magnetic part to define the magnetic gap, the central magnetic part comprises a plurality of first sub-center magnets which are distributed at intervals along the second direction, the magnetizing directions of two adjacent first sub-center magnets are opposite, the driving coil is provided with two long sides which are oppositely arranged, and the two long sides are respectively arranged opposite to the two adjacent first sub-center magnets along the first direction.

14. The vibrotactile element of claim 13 wherein adjacent ones of the first sub-center magnets are spaced apart by a gap of approximately zero or equal to zero in the second direction.

15. The vibrotactile element of claim 13, wherein the side magnet portion comprises a side magnet, wherein the side magnet and the plurality of first sub-center magnets are magnetized in the first direction, and wherein the magnetization directions between adjacent side magnets and the first sub-center magnets and between adjacent two of the first sub-center magnets are opposite.

16. The vibratory sound unit of claim 13 wherein the central magnetic portion further comprises a central magnetically permeable plate, a plurality of the first sub-center magnets each being connected to the central magnetically permeable plate on a side of the first sub-center magnets remote from the second vibratory system.

17. The vibration/sound production unit according to claim 13, wherein the magnetic yoke includes a body portion and a hollow hole provided in the body portion, the side magnetic portion and the first sub-center magnet located at two end positions are provided in the body portion, and the hollow hole is provided at least partially opposite to the driving coil along the first direction.

18. The vibrotactile element of claim 17, wherein projections of the other first sub-center magnets located between the first sub-center magnets at both end positions along the first direction are located inside edges of the hollowed-out hole, and wherein the other first sub-center magnets located between the first sub-center magnets at both end positions along the first direction are extended into the hollowed-out hole.

19. The vibration/sound production unit according to claim 13, wherein the central magnetic portion further comprises a central magnetic conductive plate, wherein one side of the plurality of first sub-center magnets away from the second vibration system is connected with the central magnetic conductive plate, the magnetic conductive yoke comprises a body portion and a hollowed hole formed in the body portion, the central magnetic conductive plate comprises a supporting portion and an extending portion formed in the outer side of the supporting portion, the extending portion extends along the first direction, two ends of the extending portion are respectively connected with the supporting portion and the body portion, the supporting portion is arranged opposite to the hollowed hole, and the plurality of first sub-center magnets are fixed on the supporting portion.

20. The vibrotactile element of claim 19, wherein the extension is located on opposite sides of the support in a third direction perpendicular to the first and second directions, respectively, the side magnetic portion being spaced from the extension to define a portion of the magnetic gap.

21. The vibratory sound unit of claim 19 wherein the projections of the plurality of first sub-center magnets along the first direction are all located inside the edges of the hollowed-out hole, and wherein the plurality of first sub-center magnets along the first direction extend into the hollowed-out hole.

22. The vibratory sounding unit of claim 13, wherein the side magnetic portion includes side magnets, the center magnetic portion further includes second sub-center magnets disposed on both sides of a third direction of the plurality of first sub-center magnets, the third direction being perpendicular to the first direction and the second direction, respectively, the side magnets, the first sub-center magnets, and the second sub-center magnets all magnetizing in the first direction, and in the second direction, magnetizing directions between adjacent side magnets and the first sub-center magnets, and between adjacent two of the first sub-center magnets are opposite, and in the third direction, magnetizing directions between adjacent side magnets and the second sub-center magnets are opposite.

23. The vibratory sound unit as set forth in claim 22 wherein said central magnetic portion further comprises a central magnetically permeable plate, a plurality of said first and second sub-center magnets each being connected to said central magnetically permeable plate on a side thereof remote from said second vibratory system, said magnetically permeable yoke comprising a body portion and a hollowed-out aperture disposed in said body portion, said side magnet and said second sub-center magnet each being disposed in said body portion, said hollowed-out aperture being disposed at least partially opposite said drive coil along said first direction.

24. The vibratory sound unit of claim 23, wherein the projections of the plurality of first sub-center magnets along the first direction are all located inside the edge of the hollowed-out hole, and the plurality of first sub-center magnets along the first direction extend into the hollowed-out hole.

25. The vibration/sound production unit according to any one of claims 1 to 24, wherein the plurality of magnetic gaps are coaxially arranged and sequentially spaced from inside to outside, the plurality of voice coils are arranged in a one-to-one correspondence manner with the plurality of magnetic gaps.

26. The vibration and sound unit according to any one of claims 1 to 24, wherein the second vibration system further comprises a flexible circuit board including a flexible board portion and first and second board portions provided at both ends of the flexible board portion, the first board portion being fixed to the weight and provided with an internal pad electrically connected to the driving coil, the second board portion being located outside the fixing member and provided with an external pad electrically connected to an external circuit, the flexible board portion including two connection portions opposing in a first direction and extending in a second direction, an extension length of the two connection portions in the second direction varying with vibration of the vibrator assembly.

27. A vibration sounding module, comprising:

a housing and a vibratory sound unit according to any one of claims 1-26, said vibratory sound unit being disposed within said housing, a first end of said securing assembly being connected to an inner wall of said housing.

28. An electronic device comprising the vibration sound module according to claim 27.