CN220935315U - Sound-producing vibration device and electronic equipment - Google Patents

Abstract

The utility model belongs to the technical field of acoustic-electric transduction, and in particular relates to a sound-producing vibration device and electronic equipment, wherein the sound-producing vibration device comprises a shell with an accommodating space, a magnetic circuit system arranged in the accommodating space, sound-producing units and coil assemblies, wherein the sound-producing units and the coil assemblies are respectively arranged at two sides of the magnetic circuit system; the magnetic circuit system is elastically connected to the shell; the sound generating unit comprises a vibrating diaphragm and a voice coil which are connected, and the voice coil is at least partially positioned in a magnetic field generated by the magnetic circuit system and is used for driving the vibrating diaphragm to vibrate and generate sound along a first direction; the coil assembly is at least partially positioned in a magnetic field generated by the magnetic circuit system and is suitable for driving the magnetic circuit system to vibrate along a second direction, wherein the first direction is perpendicular to the second direction.

Description

Sound-producing vibration device and electronic equipment

Technical Field

The utility model belongs to the technical field of acoustic-electric transduction, and particularly relates to a sound-producing vibration device and electronic equipment.

Background

In products such as mobile phones, mobile communication terminals generally have a sound generating element and a vibration element, such as a speaker module and a motor, and when the communication terminal receives a communication request, for example, a phone call or a short message, an incoming call prompt mode has two kinds of sound prompt and vibration prompt. In the conventional design, the performance improvement of the speaker and the vibration motor is generally achieved by increasing the product size, but with the increasingly compact internal space of the electronic device, the battery, the main board and the camera occupy increasingly larger space, which in turn requires that the size of the speaker and the vibration motor cannot be increased or even reduced, so that the requirements of performance improvement are conflicting.

Disclosure of utility model

The utility model aims to provide a sounding vibration device and electronic equipment, so as to at least partially solve the problem that a loudspeaker and a vibration motor occupy large space in the electronic equipment.

The first aspect of the present utility model provides a sounding vibration device, comprising a housing having an accommodating space, a magnetic circuit system disposed in the accommodating space, and sounding units and coil assemblies disposed on two sides of the magnetic circuit system;

The magnetic circuit system is elastically connected to the shell;

the sound generating unit comprises a vibrating diaphragm and a voice coil which are connected, the vibrating diaphragm is connected to the shell, and the voice coil is at least partially positioned in a magnetic field generated by the magnetic circuit system and is used for driving the vibrating diaphragm to vibrate and generate sound along a first direction;

The coil assembly is at least partially positioned in a magnetic field generated by the magnetic circuit system and is suitable for driving the magnetic circuit system to vibrate along a second direction, wherein the first direction and the second direction are mutually perpendicular.

The sounding vibration device provided by the utility model can also have the following additional technical characteristics:

In one specific embodiment of the utility model, the magnetic circuit system comprises a bracket, and main magnetic steel and auxiliary magnetic steel fixed on the same side face of the bracket, wherein the auxiliary magnetic steel is arranged on the outer side of the main magnetic steel in a surrounding manner and forms a magnetic gap with the main magnetic steel, and the voice coil is at least partially inserted into the magnetic gap.

In one specific embodiment of the present utility model, the coil assembly includes a flat annular coil, an axis of the annular coil is parallel to the first direction, and two driving long sides of the annular coil respectively correspond to the main magnetic steel and the auxiliary magnetic steel.

In one specific embodiment of the present utility model, the bracket is a yoke.

In one specific embodiment of the utility model, the magnetic yoke is provided with a through hole, and at least part of the main magnetic steel and at least part of the auxiliary magnetic steel are opposite to at least part of the annular coil through the through hole.

In a specific embodiment of the utility model, the number of the annular coils is two, the two annular coils are sequentially arranged along the second direction, and two adjacent driving long sides of the two annular coils are opposite to the main magnetic steel;

Along the second direction, the magnet yoke is provided with two through holes which are distributed at intervals, and along the first direction, the two annular coils respectively correspond to the two through holes.

In one specific embodiment of the utility model, the bracket comprises a bracket body and a supporting arm connected to one side of the bracket body facing the sound generating unit, wherein the main magnetic steel and the auxiliary magnetic steel are both arranged on the bracket body, and the supporting arm is elastically connected to the shell.

In one specific embodiment of the utility model, along the second direction, two ends of the magnetic circuit system are provided with elastic pieces, each elastic piece is provided with a first end and a second end, the first end is connected with the shell, and the second end is connected with the supporting arm;

Or along the second direction, magnetic circuit both ends all are equipped with the shell fragment, the shell fragment has first end and second end, just first end with the casing is connected, the second end with the support arm is connected, and every the shell fragment corresponds and is provided with a pair of dog, and one the dog is located the first end of shell fragment is kept away from one side of casing, another the dog is located the shell fragment second end is kept away from one side of magnetic circuit.

In one specific embodiment of the present utility model, the magnetizing directions of the main magnetic steel and the auxiliary magnetic steel are parallel to the first direction, and the magnetizing directions of the main magnetic steel and the auxiliary magnetic steel are opposite.

The second aspect of the present utility model also proposes an electronic device comprising a sound-emitting vibration device as described in any one of the above.

The sound-producing vibration device provided by the utility model comprises a shell with an accommodating space, a magnetic circuit system arranged in the accommodating space, and sound-producing units and coil assemblies which are respectively arranged at two sides of the magnetic circuit system; the magnetic circuit system is elastically connected to the shell; the sound generating unit comprises a vibrating diaphragm and a voice coil which are connected, and the voice coil is at least partially positioned in a magnetic field generated by the magnetic circuit system and is used for driving the vibrating diaphragm to vibrate and generate sound along a first direction; the coil assembly is at least partially positioned in a magnetic field generated by the magnetic circuit system and is suitable for driving the magnetic circuit system to vibrate along a second direction, wherein the first direction is perpendicular to the second direction. The structure is characterized in that the magnetic circuit system is elastically connected in the shell and vibrates along the second direction under the driving of the coil assembly, so that the magnetic circuit system is formed into a vibrator of the vibration motor, vibration prompt is given to a user, meanwhile, part of the voice coil of the sound generating unit is inserted between magnetic gaps of the magnetic circuit assembly and can reciprocate along the first direction where the axial direction of the voice coil is located, the vibrating diaphragm is driven to vibrate and sound, the same magnetic circuit system can meet the requirements of the sound generating unit and the vibration motor at the same time, the number of devices of the magnetic circuit system in the sound generating vibration device is effectively reduced, the overall volume of the sound generating device is reduced, and the space occupation rate of the sound generating vibration device in electronic equipment is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a cross-sectional view of a sound emitting vibration device in accordance with one embodiment of the present utility model;

fig. 2 is an exploded view of a sound emitting vibration device in accordance with an embodiment of the present utility model.

Reference numerals illustrate: 100-sounding vibration device;

10-sounding units, 11-folded ring parts, 12-reinforced parts and 13-voice coils;

20-magnetic circuit system, 21-magnetic yoke, 211-magnetic yoke body, 212-supporting arm, 213-through hole; 22-main magnetic part, 221-main magnetic steel, 222-main magnetic plate, 23-auxiliary magnetic part, 231-auxiliary magnetic steel and 232-auxiliary magnetic conductive plate;

30-vibration motor, 31-coil, 32-FPCB board;

40-housing, 41-first housing, 42-second housing, 43-stop;

50-shrapnel.

Detailed Description

Exemplary embodiments of the present utility model will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present utility model are shown in the drawings, it should be understood that the present utility model may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the utility model to those skilled in the art.

It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "includes," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless an order of performance is explicitly stated. It should also be appreciated that additional or alternative steps may be used.

Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.

For ease of description, spatially relative terms, such as "inner," "outer," "lower," "below," "upper," "above," and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Accordingly, the example term "below … …" may include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative relationship descriptors used herein interpreted accordingly.

The utility model provides an electronic device, which is provided with a sounding vibration device 100, and can effectively reduce the space occupation rate of a loudspeaker and a vibration motor 30 in the electronic device through the sounding vibration device 100 and the electronic device.

Referring to fig. 1-2, in some embodiments of the present utility model, a sound-emitting vibration device 100 includes a housing 40 having an accommodating space, a magnetic circuit 20 disposed in the accommodating space, and a sound-emitting unit 10 and a coil assembly disposed on two sides of the magnetic circuit 20; the magnetic circuit system 20 is elastically connected to the housing 40; the sound generating unit 10 comprises a vibrating diaphragm and a voice coil 13 which are connected, the vibrating diaphragm is connected to the shell 40, and the voice coil 13 is at least partially positioned in a magnetic field generated by the magnetic circuit system 20 and is used for driving the vibrating diaphragm to vibrate and generate sound along a first direction; the vibration motor 30 includes a coil assembly coupled to the housing 40, the coil assembly being at least partially disposed in a magnetic field generated by the magnetic circuit 20 and adapted to drive the magnetic circuit 20 to vibrate in a second direction, wherein the first direction is perpendicular to the second direction.

The housing 40 has a substantially rectangular structure and includes a first housing 41 with two open ends and a second housing 42 covering one side of the first housing 41 and enclosing a receiving cavity together with the first housing 41. Of course, the case 40 is not limited thereto, and may be integrally formed.

The magnetic circuit system 20 is elastically connected to the inside of the first housing 41 for forming a stable magnetic field.

The sound generating unit 10 comprises a vibrating diaphragm and a voice coil 13, the vibrating diaphragm comprises an annular folded ring part 11 and a reinforcing part 12 connected to the center of the folded ring part 11, the periphery of the folded ring part 11 is connected to the other side of the first shell 41 relative to the second shell 42, one end of the voice coil 13 is connected with the vibrating diaphragm, and the other end of the voice coil 13 is at least partially positioned in a magnetic field generated by the magnetic circuit system and used for driving the vibrating diaphragm to vibrate and generate sound in a first direction when the power is supplied. Specifically, the first direction is the thickness direction of the acoustic vibration device 100.

The coil assembly is disposed on the inner wall of the second housing 42 and at least partially located in the magnetic field generated by the magnetic circuit system. And since the magnetic circuit system 20 is elastically connected with the first housing 41 and thus forms the vibration motor 30 with the coil assembly, the magnetic circuit system 20 can be driven by the coil assembly to reciprocate in the second direction as a vibrator of the vibration motor 30. In this embodiment, the second direction is the longitudinal direction of the sound emitting vibration device 100.

According to the sounding vibration device 100 of the present embodiment, the magnetic circuit 20 is elastically connected in the housing 40 and vibrates along the second direction under the driving of the coil assembly, so that the magnetic circuit 20 is formed into a vibrator of the vibration motor 30, and vibration prompt is given to a user, meanwhile, part of the voice coil 13 of the sounding unit 10 is at least partially located in the magnetic field generated by the magnetic circuit 20 and can reciprocate along the first direction where the axial direction of the voice coil is located, so that the vibrating diaphragm is driven to vibrate and sound, thereby the same magnetic circuit 20 can meet the requirements of the sounding unit 10 and the vibration motor 30 at the same time, the number of devices of the magnetic circuit 20 in the sounding vibration device 100 is effectively reduced, the overall volume of the sounding device is reduced, and the space occupation rate of the sounding vibration device 100 in the electronic equipment is reduced.

In one embodiment of the present utility model, the magnetic circuit system 20 includes a bracket, and a main magnetic steel 22 and a sub magnetic steel 23 fixed on the same side of the bracket, wherein the sub magnetic steel 23 is disposed around the outer side of the main magnetic steel 22 and forms a magnetic gap with the main magnetic steel 22, and the voice coil 13 is at least partially inserted into the magnetic gap, and the magnetic field strength in the magnetic gap is high to improve the driving force.

In the utility model, the bracket can be made of non-magnetic conductive materials, and the magnetic force lines are not shielded while the magnetic steel is fixedly supported, so that the magnetic force lines of the magnetic steel can be ensured to smoothly reach the coil assembly; the bracket can be made of magnetic conductive materials, such as a magnetic yoke 21, and the magnetic yoke 21 can effectively gather magnetic force lines to form a closed magnetic loop, so as to improve the sounding effect of the sounding unit 10. The yoke 21 will be described as an example.

The magnetic yoke 21 is elastically connected with the housing cavity of the housing 40, the main magnetic steel 22 and the auxiliary magnetic steel 23 for forming a magnetic gap are arranged on the same side surface of the magnetic yoke 21 to be suspended in the housing cavity, the end part of the voice coil 13 is inserted into the magnetic gap, when the voice coil is electrified, the magnetic fields formed by the main magnetic steel 22 and the auxiliary magnetic steel 23 interact with the voice coil 13 to form a driving acting force along a first direction, because the magnetic circuit system 20 is relatively fixed in the first direction, the driving acting force drives the voice coil 13 and the vibrating diaphragm connected with the voice coil 13 to vibrate and sound along the first direction, when the coil assembly is electrified, the magnetic fields formed by the main magnetic steel 22 and the auxiliary magnetic steel 23 interact with the coil assembly to form a driving acting force along a second direction, and because the coil assembly is fixedly arranged, the magnetic circuit system 20 has a movable space along the second direction, and the driving acting force drives the magnetic circuit system 20 to vibrate along the second direction to form vibration excitation feedback. To further reduce the interference of the magnetic circuit system 20 to the sound generating unit 10, the magnetic gap width in the second direction is larger than the amplitude in the second direction.

In one embodiment of the present utility model, the yoke (bracket) 21 includes a yoke (bracket) body 211 and a support arm 212 connected to a side of the yoke (bracket) body 211 facing the sound generating unit 10, wherein the main magnet steel 22 and the sub magnet steel 23 are both disposed on the yoke body 211, and the support arm 212 is elastically connected to the housing 40.

The yoke body 211 is of a rectangular plate structure and is elastically connected to the housing 40 through support arms 212, specifically, the number of the support arms 212 is 4, the support arms 212 are respectively arranged at two ends of two short axes of the yoke body 211, and a plane connection surface is arranged on the support arms 212 in the second direction.

In one embodiment of the present utility model, in the second direction, the two ends of the magnetic circuit system 20 are provided with the elastic pieces 50, and the elastic pieces 50 have a first end and a second end, where the first end is connected to the housing 40, and the second end is connected to the support arm 212.

By arranging the spring plates 50 with the first ends connected with the shell 40 and the second ends connected with the support arms 212 at the two ends of the magnetic circuit system 20 in the second direction, the magnetic circuit system 20 can be suspended in the accommodating cavity on one hand, and on the other hand, vibration space is provided for the magnetic circuit system 20 through elastic deformation of the spring plates 50 in the second direction.

In some embodiments, the spring plate 50 has a zigzag shape, and includes a first connection portion for connecting with the housing 40, a second connection portion for connecting with the support arm 212, and a vibration portion connected between the first connection portion and the second connection portion, where the vibration portion makes the magnetic circuit system 20 have a vibration space in the second direction through elastic deformation.

Of course, in other embodiments, the spring 50 may have other shapes, such as a Z-shape.

In one embodiment of the present utility model, each elastic piece 50 is correspondingly provided with a pair of stop blocks 43, one stop block 43 is arranged at one side of the first end of the elastic piece 50 away from the housing, and the other stop block 43 is arranged at one side of the second end of the elastic piece 50 away from the magnetic circuit system.

The stop block 43 is used for increasing the welding strength of the elastic sheet 50, so as to avoid the problem of insufficient welding reliability with the magnetic circuit system or the shell due to the thinner thickness of the elastic sheet, thereby improving the connection strength.

In one embodiment of the utility model, the coil assembly comprises a flat annular coil 31, the annular coil 31 axis being parallel to the first direction; along the first direction, the two driving long sides of the annular coil 31 respectively correspond to the main magnetic steel 221 and the auxiliary magnetic steel 231, and magnetic fields generated by the main magnetic steel 221 and the auxiliary magnetic steel 231 respectively act on the two driving long sides of the annular coil 31 to jointly drive the magnetic circuit system 20 to vibrate. The two driving long sides of the annular coil 31 correspond to the main magnetic steel 221 and the auxiliary magnetic steel 231, respectively, and it can be understood that the two driving long sides at least partially overlap with the main magnetic steel 221 and the auxiliary magnetic steel 231, respectively, along the projection of the first direction.

In one embodiment of the present utility model, the yoke 21 is provided with a through hole 213, and at least a portion of the main magnetic steel 221 and at least a portion of the sub magnetic steel 231 are opposite to at least a portion of the annular coil 31 through the through hole 213.

By providing the through hole 213, the magnetic induction lines of the yoke 21 can be prevented from being disturbed, so that the magnetic induction lines of the main magnetic steel 221 and the auxiliary magnetic steel 231 can pass through the through hole 213 to enable the coil assembly to be located in the magnetic field, thereby enabling the magnetic circuit system 20 to interact with the energized coil assembly. And compared with other positions, the magnetic field intensity at the position of the magnetic gap is high, so that the magnetic field intensity above the coil assembly can be improved, the interaction force between the magnetic circuit system 20 and the coil assembly is improved, and the vibration excitation effect is improved.

Further, the number of the annular coils 31 is two, the two annular coils 31 are sequentially arranged along the second direction, two driving long sides of the two adjacent annular coils 31 are opposite to the main magnetic steel 221, two through holes 213 distributed at intervals are formed in the magnetic yoke 21 along the second direction, the two annular coils 31 respectively correspond to the two through holes 213 along the first direction, and the two driving long sides of the two annular coils 31 respectively correspond to the main magnetic steel 221 and the auxiliary magnetic steel 231. By providing two annular coils 31 in cooperation with two through holes 213, the vibration driving force can be further improved, thereby ensuring the vibration effect.

In some embodiments of the present utility model, the FPCB board 32 is disposed on the second housing 42, and in particular, disposed between the loop coil 31 and the second housing 42, and one end of the FPCB board 32 is electrically connected to the loop coil 31, and the other end extends out of the housing 40 and is connected to an external power source, thereby connecting the loop coil 31 and the external power source, and supplying power to the loop coil 31 through the external power source.

In one embodiment of the present utility model, the magnetic circuit system 20 further includes a main magnetic plate 222 stacked on the main magnetic steel 221 and a sub magnetic plate 232 stacked on the sub magnetic steel 231. The main magnetic steel 221 and the main magnetic plate 222 together form a main magnetic portion 22, the sub magnetic steel 231 and the sub magnetic plate 232 together form a sub magnetic portion 23, a magnetic gap is formed between the main magnetic portion 22 and the sub magnetic portion 23, and an end portion of the voice coil 13 is inserted into the magnetic gap.

The main magnetic steel 221 and the auxiliary magnetic steel 231 are fixed on the yoke body 211 by bonding or welding, the main magnetic plate 222 is fixed on the main magnetic steel 221 by bonding or welding, and the auxiliary magnetic plate 232 is fixed on the auxiliary magnetic steel 231 by bonding or welding.

In one embodiment of the present utility model, the magnetizing directions of the main magnetic steel 221 and the auxiliary magnetic steel 231 are parallel to the first direction, and the magnetizing directions of the main magnetic steel 221 and the auxiliary magnetic steel 231 are opposite. For the sounding unit 10 side, magnetic force lines of the main magnetic steel 221 and the auxiliary magnetic steel 231 form a closed loop, so that driving force can be increased; for the coil assembly side, the current directions of the two driving long sides of the coil are opposite, the stress directions of the two driving long sides are the same, the driving force after superposition is larger, and the vibration sense is stronger.

In one embodiment of the present utility model, the number of the auxiliary magnetic steels 231 is 4, and the auxiliary magnetic steels 231 are arranged in a ring shape with opposite ends, and the auxiliary magnetic conductive plates 232 are one and are arranged on the auxiliary magnetic steels 231 in a ring shape.

The number of the auxiliary magnetic steels 231 is set to be multiple, so that the length of the auxiliary magnetic steels 231 can be reduced, the stress of the auxiliary magnetic steels can be reduced, breakage is avoided, and the auxiliary magnetic conduction plates 232 are set to be annular, so that the installation is convenient.

Of course, in other embodiments, if the ratio of the major axis to the minor axis of the sound-emitting vibration device 100 is greater than a certain value, for example, greater than 3, the sub-magnetic steel 231 corresponding to the major axis may be disconnected.

The second aspect of the present utility model also proposes an electronic apparatus including the sound-emitting vibration device 100 in any one of the above. For the specific structure of the sound emitting device, reference is made to the structure of the sound emitting device of the foregoing embodiment. The electronic device adopts all the technical schemes of all the embodiments, so that the electronic device has at least the beneficial effects brought by the technical schemes of the embodiments, and the detailed description is omitted.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims (10)

1. The sounding vibration device is characterized by comprising a shell with an accommodating space, a magnetic circuit system arranged in the accommodating space, and sounding units and coil assemblies which are respectively arranged at two sides of the magnetic circuit system;

The magnetic circuit system is elastically connected to the shell;

the sound generating unit comprises a vibrating diaphragm and a voice coil which are connected, and the voice coil is at least partially positioned in a magnetic field generated by the magnetic circuit system and is used for driving the vibrating diaphragm to vibrate and generate sound along a first direction;

The coil assembly is at least partially positioned in a magnetic field generated by the magnetic circuit system and is suitable for driving the magnetic circuit system to vibrate along a second direction, wherein the first direction is perpendicular to the second direction.

2. The sound-producing vibration device according to claim 1, wherein the magnetic circuit system comprises a bracket, and a main magnetic steel and an auxiliary magnetic steel fixed on the same side of the bracket, wherein the auxiliary magnetic steel is arranged on the outer side of the main magnetic steel in a ring manner and forms a magnetic gap with the main magnetic steel, and the voice coil is at least partially inserted into the magnetic gap.

3. The sound emitting vibration apparatus of claim 2, wherein the coil assembly comprises a flat annular coil having an axis parallel to the first direction, and two driving long sides of the annular coil correspond to the primary and secondary magnetic steels, respectively.

4. The sound emitting vibration apparatus of claim 3, wherein the bracket is a yoke.

5. The sound emitting vibration apparatus of claim 4, wherein the yoke is provided with a through hole, and at least part of the main magnetic steel and at least part of the sub magnetic steel are opposed to at least part of the annular coil through the through hole.

6. The sound-producing vibration device according to claim 5, wherein the number of the annular coils is two, the two annular coils are sequentially arranged along the second direction, and two driving long sides adjacent to the two annular coils are opposite to the main magnetic steel;

Along the second direction, the magnet yoke is provided with two through holes which are distributed at intervals, and along the first direction, the two annular coils respectively correspond to the two through holes.

7. The sound-producing vibration device according to claim 2, wherein the bracket comprises a bracket body and a support arm connected to a side of the bracket body facing the sound-producing unit, the main magnetic steel and the auxiliary magnetic steel are both arranged on the bracket body, and the support arm is elastically connected to the housing.

8. The sound-producing vibration device of claim 7, wherein in the second direction, spring plates are provided at both ends of the magnetic circuit, the spring plates have a first end and a second end, the first end is connected with the housing, and the second end is connected with the support arm;

Or along the second direction, magnetic circuit both ends all are equipped with the shell fragment, the shell fragment has first end and second end, just first end with the casing is connected, the second end with the support arm is connected, and every the shell fragment corresponds and is provided with a pair of dog, and one the dog is located the first end of shell fragment is kept away from one side of casing, another the dog is located the shell fragment second end is kept away from one side of magnetic circuit.

9. The sound emitting vibration apparatus of any one of claims 2 to 7, wherein the magnetization directions of the main magnetic steel and the sub magnetic steel are parallel to the first direction, and the magnetization directions of the main magnetic steel and the sub magnetic steel are opposite.

10. An electronic device comprising the sound emitting vibration device according to any one of claims 1 to 9.