CN215935086U

CN215935086U - Multifunctional sounding device

Info

Publication number: CN215935086U
Application number: CN202122371510.8U
Authority: CN
Inventors: 肖波; 令狐荣林; 章统; 宋威
Original assignee: AAC Microtech Changzhou Co Ltd
Current assignee: AAC Microtech Changzhou Co Ltd
Priority date: 2021-09-29
Filing date: 2021-09-29
Publication date: 2022-03-01
Anticipated expiration: 2031-09-29

Abstract

The utility model provides a multifunctional sounding device, which comprises a shell with an accommodating cavity and a sounding monomer arranged in the accommodating cavity, wherein the sounding monomer comprises a vibration system and a magnetic circuit system for driving the vibration system to vibrate and sound along a first direction, and the magnetic circuit system comprises main magnetic steel and auxiliary magnetic steel arranged around the main magnetic steel to form a magnetic gap; the multifunctional sounding device further comprises an elastic component fixed on the shell and suspending the sounding monomer in the accommodating cavity, a flexible separator connected between the shell and the sounding monomer to divide the accommodating cavity into a front cavity and a rear cavity, and a driving coil fixed on the inner wall of the shell and used for driving the sounding monomer to vibrate along a second direction, wherein the driving coil comprises a first side edge and a second side edge arranged opposite to the first side edge, and in the first direction, the first side edge and the main magnetic steel are arranged at an interval relatively, and the second side edge and the auxiliary magnetic steel are arranged at an interval relatively; wherein the second direction is perpendicular to the first direction.

Description

Multifunctional sounding device

[ technical field ] A method for producing a semiconductor device

The utility model relates to the technical field of electronic equipment, in particular to a multifunctional sounding device.

[ background of the utility model ]

With the development of electronic technology, portable consumer electronic devices, such as mobile phones, handheld game consoles, navigation devices, handheld multimedia entertainment devices, etc., are more and more sought after by people, and these electronic devices generally use voice and/or vibration to make system feedback, such as incoming call prompt of mobile phones, navigation prompt, vibration feedback of game consoles, etc.

In the prior art, vibration feedback and voice feedback of electronic equipment are respectively completed through different devices, but the development trend of the electronic equipment is short, small, light and thin, and the more the devices are, the more the electronic equipment is not beneficial to reducing the volume of the electronic equipment.

[ Utility model ] content

The utility model aims to provide a multifunctional sound production device which has a vibration feedback function and a voice feedback function and is beneficial to reducing the volume of electronic equipment.

The utility model provides a multifunctional sounding device, which comprises a shell with an accommodating cavity and a sounding monomer arranged in the accommodating cavity, wherein the sounding monomer comprises a vibration system and a magnetic circuit system for driving the vibration system to vibrate and sound along a first direction, and the magnetic circuit system comprises main magnetic steel and auxiliary magnetic steel arranged around the main magnetic steel to form a magnetic gap; the multifunctional sound production device further comprises:

the sound-producing unit comprises an elastic component, a flexible separator and a driving coil, wherein the elastic component is fixed on the shell and suspends the sound-producing unit in the accommodating cavity, the flexible separator is connected between the shell and the sound-producing unit to divide the accommodating cavity into a front cavity and a rear cavity, the driving coil is fixed on the inner wall of the shell and is used for driving the sound-producing unit to vibrate along a second direction, the driving coil comprises a first side edge and a second side edge, the second side edge is opposite to the first side edge, the first side edge and the main magnetic steel are opposite to each other in a spaced mode in the first direction, and the second side edge and the auxiliary magnetic steel are opposite to each other in a spaced mode; wherein the second direction is perpendicular to the first direction.

In one embodiment of the present invention, a polarity of the main magnetic steel toward one end of the driving coil is opposite to a polarity of the sub magnetic steel toward one end of the driving coil.

As an embodiment of the present invention, the first side and the second side together enclose a winding hole, and the winding hole is disposed opposite to the magnetic gap in the first direction.

As an embodiment of the present invention, the flexible partition recess includes a bent portion, a first connection portion extending from an inner edge of the bent portion to be fixed to the sound emitting unit, and a second connection portion extending from an outer edge of the bent portion to be fixed to the housing.

As an embodiment of the present invention, the curved portion is concavely formed toward the rear cavity.

As an embodiment of the present invention, the housing includes a bottom wall and a top wall that are oppositely disposed in the first direction, and a peripheral wall connected between the bottom wall and the top wall, the flexible partition being connected between the peripheral wall and the sound-emitting unit.

As an embodiment of the present invention, the magnetic circuit system further includes a magnetic yoke for fixedly connecting the main magnetic steel and the auxiliary magnetic steel, the magnetic yoke is formed with an avoidance port, the first side edge is disposed at an interval opposite to the main magnetic steel through the avoidance port, and the second side edge is disposed at an interval opposite to the auxiliary magnetic steel through the avoidance port.

As an embodiment of the present invention, at least a portion of the drive coil is positioned within the bypass opening in the first direction.

As an embodiment of the present invention, the magnetic yoke includes a first magnetic yoke and a second magnetic yoke which are oppositely disposed at an interval to form the avoiding opening, and a portion of the first magnetic yoke is fixedly connected to the main magnetic steel, and a portion of the first magnetic yoke is fixedly connected to the auxiliary magnetic steel; and part of the second magnetic yoke is fixedly connected with the main magnetic steel, and part of the second magnetic yoke is fixedly connected with the auxiliary magnetic steel.

As an embodiment of the present invention, the magnetic circuit system further includes a main pole core attached to the main magnetic steel and a sub pole core surrounding the main pole core and attached to the sub magnetic steel;

the auxiliary pole core comprises a first fixing part attached to the auxiliary magnetic steel and a second fixing part bent and extended from the first fixing part and located on the periphery of the auxiliary magnetic steel, wherein the elastic assembly is fixedly connected with the second fixing part.

As an embodiment of the present invention, the elastic assembly includes a first elastic member and a second elastic member, the first elastic member includes a first elastic arm connected to the housing and a second elastic arm formed by bending and extending from the first elastic arm and used for connecting to the sound generating unit, the second elastic member includes a third elastic arm connected to the housing and a fourth elastic arm formed by bending and extending from the third elastic arm and used for connecting to the sound generating unit;

in the second direction, the first elastic arm and the third elastic arm are respectively arranged at two sides of the sounding monomer, and in the third direction, the second elastic arm and the fourth elastic arm are respectively arranged at two sides of the sounding monomer; or, in the second direction, the second elastic arm and the fourth elastic arm are respectively arranged at two sides of the sounding monomer, and in the third direction, the first elastic arm and the third elastic arm are respectively arranged at two sides of the sounding monomer; and the third direction is vertical to the first direction and the second direction.

As an embodiment of the present invention, the sound generating unit further includes a frame, the vibration system includes a voice coil inserted into the magnetic gap, an upper diaphragm, a lower diaphragm disposed opposite to the upper diaphragm along the first direction, and a skeleton disposed between the upper diaphragm and the lower diaphragm, the skeleton includes a main body portion, a first bending portion bent and extended from an inner edge of the main body portion, and a second bending portion bent and extended from an outer edge of the main body portion, and the voice coil is fixed to the first bending portion;

the upper vibrating diaphragm comprises an inward folding ring and an outward folding ring arranged on the outer side of the inward folding ring, the outward folding ring comprises a first folding ring part, a first outward flanging formed by extending from the outer edge of the first folding ring part and a first inward flanging formed by extending from the inner edge of the first folding ring part, the first outward flanging is fixed on the basin frame, and the first inward flanging is fixed on the main body part of the framework;

the lower vibrating diaphragm comprises a second flange part arranged opposite to the first flange part, a second outer flanging formed by extending from the outer edge of the second flange part and a second inner flanging formed by extending from the inner edge of the second flange part, the second outer flanging is fixed on the end face, far away from the first outer flanging, of the basin frame, and the second inner flanging is fixed on the second bending part;

the infolding ring includes third ring portion, certainly the outward flange of formation is extended to the outward flange of third ring portion and certainly the inward flange of formation is extended to the inward flange of third ring portion, the sound production monomer is still located including the cover the magnetic circuit's holding ring, wherein, the third inside flange is fixed on the holding ring, the third flanging is fixed in on the main part of skeleton.

The utility model has the beneficial effects that: the sounding single body is suspended in the accommodating cavity through the elastic component, so that the sounding single body can move relative to the shell; fixing the drive coil on the inner wall of the shell, and enabling the first side edge of the drive coil to be arranged at intervals relative to the main magnetic steel along the first direction (the vibration direction of a vibration system) and enabling the second side edge of the drive coil to be arranged at intervals relative to the auxiliary magnetic steel along the first direction, so that the sounding monomer can vibrate along the second direction vertical to the first direction under the interaction of the main magnetic steel, the auxiliary magnetic steel and the drive coil, namely, the whole sounding monomer is used as a rotor, the drive coil is used as a stator, and the sounding monomer is driven to vibrate through the interaction force among the drive coil, the main magnetic steel and the auxiliary magnetic steel to realize the vibration feedback of the device; the flexible separator hermetically separates the accommodating cavity into a front cavity and a rear cavity on one hand so as to ensure the sound production function of the device; on the other hand, the sound-emitting single body can reciprocate in the accommodating cavity to form vibration by virtue of the flexible physical property of the flexible separator. The device in the technical scheme has the vibration feedback function and the voice feedback function, and is beneficial to reducing the volume of electronic equipment.

[ description of the drawings ]

FIG. 1 is a schematic view of an overall structure of a multifunctional sound generating device according to the present invention;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is a schematic diagram of a partially exploded structure of the multi-function sound producing device;

FIG. 4 is a schematic view of a flexible separator;

fig. 5 is a schematic view of the structure of the drive coil;

FIG. 6 is a bottom view of FIG. 1 with the bottom wall removed;

FIG. 7 is a cross-sectional view taken along line A-A of FIG. 1;

fig. 8 is a partial enlarged view at C in fig. 7.

In the figure:

100. a multifunctional sound producing device; 10. a housing; 10a, a containing cavity; 10a1, anterior chamber; 10a2, rear cavity; 10b, sound outlet holes; 11. a bottom wall; 12. a top wall; 13. a peripheral wall; 20. a sounding monomer; 21. a vibration system; 211. a voice coil; 212. an upper vibrating diaphragm; 2121. an inward folding ring; 2121a, a third collar part; 2121b, a third outward flanging; 2121c, a third inward flanging; 2122. an outward folding ring; 2122a, a first hinge part; 2122b, a first flanging; 2122c, a first inward flanging; 213. a framework; 2131. a main body portion; 2132. a first bent portion; 2133. a second bent portion; 214. a ball top; 215. a lower diaphragm; 2151. a second flange part; 2152. a second outer flanging; 2153. a second inner flanging; 22. a magnetic circuit system; 22a, a magnetic gap; 221. main magnetic steel; 222. a secondary magnetic steel; 223. a magnetic yoke; 223a, an avoidance port; 2231. a first yoke; 2232. a second yoke; 224. a main pole core; 225. a secondary pole core; 2251. a first fixed part; 2252. a second fixed part; 226. magnetic steel is arranged; 2261. a base; 2262. a top portion; 23. a basin stand; 24. a positioning ring; 25. a flexible circuit board; 251. a first fixed arm; 252. a second fixed arm; 253. a spring arm; 30. an elastic component; 31. a first elastic member; 311. a first resilient arm; 312. a second resilient arm; 32. a second elastic member; 321. a third elastic arm; 322. a fourth elastic arm; 40. a drive coil; 40a, a winding hole; 41. a first side edge; 42. a second side edge; 50. a flexible separator; 51. a bending section; 52. a first connection portion; 53. a second connecting portion.

[ detailed description ] embodiments

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the utility model as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the utility model. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The utility model is further described with reference to the following figures and embodiments. The utility model provides a multifunctional sounding device 100 which can be used in electronic equipment and can play a role in feedback prompt by sounding and also play a role in feedback prompt by vibrating. Referring to fig. 1 to 8, the housing 10 includes a bottom wall 11 and a top wall 12 disposed opposite to each other in a first direction, and a peripheral wall 13 connected between the bottom wall 11 and the top wall 12, the peripheral wall 13, the bottom wall 11, and the top wall 12 together forming a housing chamber 10 a. The sounding monomer 20 comprises a vibration system 21 and a magnetic circuit system 22 for driving the vibration system 21 to vibrate and generate sound along a first direction, the magnetic circuit system 22 comprises a main magnetic steel 221 and an auxiliary magnetic steel 222 arranged around the main magnetic steel 221 to form a magnetic gap 22a, the vibration system 21 comprises a voice coil 211 inserted in the magnetic gap 22a, and the voice coil 211 vibrates under the action of the main magnetic steel 221 and the auxiliary magnetic steel 222 to realize the vibration of the vibration system 21, so that the voice feedback prompt of the device is realized.

Referring to fig. 2, 4-7, in order to realize the vibration feedback function of the device, the device further includes an elastic component 30, a flexible partition 50 and a driving coil 40, the elastic component 30 is fixed on the casing 10 and suspends the sound-generating unit 20 in the housing cavity 10a, the flexible partition 50 is connected between the casing 10 and the sound-generating unit 20 to partition the housing cavity 10a into a front cavity 10a1 and a rear cavity 10a2, the driving coil 40 is fixed on the inner wall of the casing 10 for driving the sound-generating unit 20 to vibrate along a second direction, the driving coil 40 includes a first side 41 and a second side 42 opposite to the first side 41, and in the first direction, the first side 41 is opposite to and spaced from the main magnetic steel 221, and the second side 42 is opposite to and spaced from the auxiliary magnetic steel 222.

Referring to fig. 1 and 7, the casing 10 is provided with a sound outlet hole 10b communicating with the front cavity 10a1 to realize sound emission; the rear cavity 10a2 may be filled with sound absorbing powder to improve the low frequency acoustic performance of the sound producing device.

As shown in fig. 1, 6 and 7, the Z direction is defined as a first direction, the X direction is defined as a second direction, the Y direction is defined as a third direction, the first direction is defined as a vibration direction of the vibration system 21, the second direction is defined as a vibration direction of the sound generating unit 20, the second direction is perpendicular to the first direction, and the third direction is perpendicular to both the first direction and the second direction.

In the present invention, the sound generating unit 20 is suspended in the accommodating cavity 10a by the elastic component 30, so that the sound generating unit 20 can move relative to the housing 10; fixing the driving coil 40 on the inner wall of the casing 10, and making the first side 41 of the driving coil 40 opposite to the main magnetic steel 221 along the first direction (the vibration direction of the vibration system 21) and the second side 42 opposite to the auxiliary magnetic steel 222 along the first direction and the interval, so that the entire sounding monomer 20 can vibrate along the second direction perpendicular to the first direction under the interaction of the main magnetic steel 221, the auxiliary magnetic steel 222 and the driving coil 40, that is, the entire sounding monomer 20 is used as a mover, the driving coil 40 is used as a stator, and the sounding monomer 20 is driven to vibrate by the interaction force between the driving coil 40 and the main magnetic steel 221, the auxiliary magnetic steel 222 to realize the vibration feedback of the device; wherein, the flexible partition 50 on one hand hermetically separates the containing cavity 10a into a front cavity 10a1 and a rear cavity 10a2 to ensure the sound production function of the device; on the other hand, the sound generating unit 20 can move back and forth in the housing chamber 10a to generate vibration due to the flexible physical properties of the flexible partition 50. The device in the technical scheme has the vibration feedback function and the voice feedback function, and is beneficial to reducing the volume of electronic equipment.

Note that the polarity of the end of the main magnet 221 facing the driving coil 40 is opposite to the polarity of the end of the sub magnet 222 facing the driving coil 40, so that the sound generating unit 20 can vibrate.

In some specific embodiments, referring to fig. 5 and 6, the first side edge 41 and the second side edge 42 jointly enclose the winding hole 40a, in the first direction, the winding hole 40a is disposed opposite to the magnetic gap 22a, and the relative positions between the driving coil 40 and the main magnetic steel 221 and the auxiliary magnetic steel 222 are optimized to increase the relative acting force between the driving coil 40 and the main magnetic steel 221 and the auxiliary magnetic steel 222, so as to ensure the driving of the sound-generating unit 20.

As shown in fig. 6, two drive coils 40 are provided, and the two drive coils 40 are arranged and fixed on the inner wall of the casing 10 along the second direction, and the number of the drive coils 40 is increased in a limited space, so that the relative area between the drive coils 40 and the main magnetic steel 221 and the relative area between the drive coils 40 and the auxiliary magnetic steel 222 can be increased, and the interaction force between the drive coils 40 and the main magnetic steel 221 and the auxiliary magnetic steel 222 can be increased.

In one embodiment, referring to fig. 2 and 6, the elastic assembly 30 includes a first elastic member 31 and a second elastic member 32, the first elastic member 31 includes a first elastic arm 311 connected to the casing 10 and a second elastic arm 312 bent and extended from the first elastic arm 311 for connecting to the sound generating unit 20, and the second elastic member 32 includes a third elastic arm 321 connected to the casing 10 and a fourth elastic arm 322 bent and extended from the third elastic arm 321 for connecting to the sound generating unit 20.

In some specific embodiments, the first elastic arm 311 and the third elastic arm 321 are respectively disposed on two sides of the sound generating unit 20 in the second direction, and the second elastic arm 312 and the fourth elastic arm 322 are respectively disposed on two sides of the sound generating unit 20 in the third direction; or, in the second direction, the second elastic arm 312 and the fourth elastic arm 322 are respectively disposed at two sides of the sounding unit 20, and in the third direction, the first elastic arm 311 and the third elastic arm 321 are respectively disposed at two sides of the sounding unit 20, see fig. 6 specifically; thereby ensuring that the elastic member 30 can stably suspend the sound-emitting unit 20 in the receiving cavity 10 a.

In some embodiments, the first elastic arm 311 may be connected to the housing 10 by an adhesive member having viscosity, and the second elastic arm 312 may be connected to the sounding unit 20 by an adhesive member having viscosity.

In some embodiments, the third elastic arm 321 may be connected to the housing 10 by an adhesive member, and the fourth elastic arm 322 may be connected to the sounding unit 20 by an adhesive member.

Referring to fig. 4, 7 and 8, the flexible partition 50 connects between the peripheral wall 13 and the sound-emitting unit 20, i.e., in the first direction, the housing chamber 10a is partitioned into a front chamber 10a1 and a rear chamber 10a2 via the flexible partition 50.

In some specific embodiments, the flexible partition 50 is concavely formed with a bent portion 51. Therefore, when the driving coil 40 drives the sound generating unit 20 to vibrate in the second direction, the flexible spacer 50 is more easily deformed by being pushed and pulled by the sound generating unit 20, thereby making the sound generating unit 20 more easily vibrate.

In some specific embodiments, the curved portion 51 has a ring shape, and the curved portion 51 having the ring shape surrounds the sound emitting unit 20.

In some embodiments, the curved portion 51 is concavely formed toward the rear chamber 10a2, so that the space of the front chamber 10a1 can be increased to improve the acoustic performance.

Referring to fig. 8, the flexible partition 50 further includes a first connection portion 52 extending from an inner edge of the bent portion 51 to be fixed to the sound emitting unit 20 and a second connection portion 53 extending from an outer edge of the bent portion 51 to be fixed to the housing 10. The sealing connection of the flexible partition 50 to the sound emitting unit 20 is achieved by the first connection portion 52, and the sealing connection of the flexible partition 50 to the housing 10 is achieved by the second connection portion 53.

Referring to fig. 2, 3, 7, and 8, the sound generating unit 20 further includes a frame 23, the vibration system 21 includes a voice coil 211 inserted into the magnetic gap 22a, an upper diaphragm 212, a lower diaphragm 215 disposed opposite to the upper diaphragm 212 along the first direction, and a bobbin 213 disposed between the upper diaphragm 212 and the lower diaphragm 215, the bobbin 213 includes a main body portion 2131, a first bending portion 2132 bent and extended from an inner edge of the main body portion 2131, and a second bending portion 2133 bent and extended from an outer edge of the main body portion 2131, and the voice coil 211 is fixed to the first bending portion 2132.

The upper diaphragm 212 includes an inward folding ring 2121 and an outward folding ring 2122 disposed on an outer side 2121 of the inward folding ring, the outward folding ring 2122 includes a first folding ring portion 2122a, a first outward turned edge 2122b formed by extending from an outer edge of the first folding ring portion 2122a, and a first inward turned edge 2122c formed by extending from an inner edge of the first folding ring portion 2122a, the first outward turned edge 2122b is fixed on the frame 23, and the first inward turned edge 2122c is fixed on the main body portion 2131 of the framework 213.

The lower diaphragm 215 includes a second flange portion 2151 disposed opposite to the first flange portion 2122a, a second outer flange 2152 formed by extending from the outer edge of the second flange portion 2151, and a second inner flange 2153 formed by extending from the inner edge of the second flange portion 2151, the second outer flange 2152 is fixed on the end surface of the basin frame 23 far away from the first outer flange 2122b, and the second inner flange 2152 is fixed on the second bending portion 2133.

The inward-folding ring 2121 includes a third folding ring part 2121a, a third outward-folding edge 2121b formed by extending from an outer edge of the third folding ring part 2121a, and a third inward-folding edge 2121c formed by extending from an inner edge of the third folding ring part 2121a, and the sound generating unit 20 further includes a positioning ring 24 sleeved on the magnetic circuit system 22, wherein the third inward-folding edge 2121c is fixed on the positioning ring 24, and the third outward-folding edge 2121b is fixed on the main body portion 2131 of the framework 213.

The vibration system 21 further includes a dome 214, the dome 214 is fixed on the main body portion 2131 of the skeleton 213 and located between the first inward turned edge 2123 and the third outward turned edge 2182, the strength of the skeleton 213 can be enhanced by the dome 214, the torsion resistance and the anti-sway capability of the skeleton 213 are improved, and the acoustic performance of the sound generating unit 20 is improved.

The sound generating unit 20 further includes a flexible circuit board 25 electrically connected to the voice coil 211, and the flexible circuit board 25 includes a first fixing arm 251 sandwiched between the frame 23 and the second outer flange 2152, a second fixing arm 252 sandwiched between the second bending portion 2133 and the second inner flange 2153, and a resilient arm 253 connected between the first fixing arm 251 and the second fixing arm 252.

Referring to fig. 2, 6 and 7, the structure of the magnetic circuit system 22 is illustrated as follows:

the magnetic circuit system 22 further includes a magnetic yoke 223 for fixedly connecting the main magnet 221 and the auxiliary magnet 222, the magnetic yoke 223 is formed with an avoiding opening 223a, the first side 41 is disposed opposite to the main magnet 221 through the avoiding opening 223a at an interval, and the second side 42 is disposed opposite to the auxiliary magnet 222 through the avoiding opening 223a at an interval.

In some specific embodiments, referring to fig. 7, in the first orientation, at least the drive coil 40 is partially located within the escape aperture 223 a. The driving coil 40 is ensured to be arranged opposite to the main magnet steel 221 and the auxiliary magnet steel 222 at intervals, meanwhile, part of the driving coil 40 is accommodated in the avoidance opening 223a of the magnetic yoke 223, the thicknesses of the driving coil 40 and the magnetic yoke 223 are overlapped, the increase range of the thickness of the device caused by the driving coil 40 can be reduced, and the thickness of the device is favorably reduced.

In some specific embodiments, referring to fig. 6, the magnetic yoke 223 includes a first magnetic yoke 2231 and a second magnetic yoke 2232 disposed opposite to the first magnetic yoke 2231 at a distance to form a avoiding opening 223a, and a portion of the first magnetic yoke 2231 is fixedly connected to the main magnetic steel 221, and a portion of the first magnetic yoke 2231 is fixedly connected to the auxiliary magnetic steel 222; part of the second yoke 2232 is fixedly connected to the main magnet 221, and part of the second yoke 2232 is fixedly connected to the sub magnet 222.

Here, the first and

second yokes

2231 and 2232 may be disposed at an interval in the third direction, or the first and

second yokes

2231 and 2232 may be disposed at an interval in the second direction.

In one embodiment, referring to fig. 2 and 7, the magnetic circuit system 22 further includes a main pole core 224 attached to the first main magnetic steel 221, and a sub-pole core 225 surrounding the main pole core 224 and attached to the sub-magnetic steel 222.

In some specific embodiments, referring to fig. 6, the auxiliary pole core 225 includes a first fixing portion 2251 attached to the auxiliary magnetic steel 222 and a second fixing portion 2252 extending from the first fixing portion 2251 and located on the peripheral side of the auxiliary magnetic steel 222, and the second fixing portion 2252 located on the peripheral side of the auxiliary magnetic steel 222 can guide the connection between the auxiliary pole core 225 and the auxiliary magnetic steel 222 for quick positioning and assembly.

In some specific embodiments, the elastic member 30 is connected to the second fixing part 2252, so that the elastic member 30 is connected to the sound emitting unit 20. That is, the second elastic arm 312 of the first elastic member 31 is connected to the second fixing part 2252, and the fourth elastic arm 322 of the second elastic member 32 is connected to the second fixing part 2252.

In one embodiment, referring to fig. 2 and 7, the magnetic circuit system 22 further includes an upper magnetic steel 226 attached to the side of the main pole core 224 away from the main magnetic steel 221, and the positioning ring 24 is disposed around and abutting the second main magnetic steel 221.

In some specific embodiments, the upper magnetic steel 226 includes a base 2261 abutting on the main pole core 224 and a top 2262 formed by protruding from the middle of the base 2261 toward a direction away from the main pole core 224, and the positioning ring 24 surrounds the top 2262 and abuts on the top 2262, so as to achieve stable positioning of the positioning ring 24.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the utility model described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The above are only embodiments of the present invention, and it should be noted that, for those skilled in the art, modifications can be made without departing from the inventive concept of the present invention, but these are all within the scope of the present invention.

Claims

1. A multifunctional sounding device comprises a shell with an accommodating cavity and a sounding monomer arranged in the accommodating cavity, wherein the sounding monomer comprises a vibration system and a magnetic circuit system for driving the vibration system to vibrate and sound along a first direction, and the magnetic circuit system comprises main magnetic steel and auxiliary magnetic steel arranged around the main magnetic steel to form a magnetic gap; characterized in that, the multi-functional vocal device still includes:

2. The multifunctional sound production device according to claim 1, wherein the polarity of the end of the main magnetic steel facing the drive coil is opposite to the polarity of the end of the auxiliary magnetic steel facing the drive coil.

3. The multi-function sound production device of claim 1, wherein the first side edge and the second side edge together enclose a wire winding hole, the wire winding hole being disposed opposite the magnetic gap in the first direction.

4. The multi-function sound generating device as claimed in claim 1, wherein the flexible partition comprises a bent portion, a first connecting portion extending from an inner edge of the bent portion and fixed to the sound generating unit, and a second connecting portion extending from an outer edge of the bent portion and fixed to the housing.

5. The multi-function sound production device of claim 4, wherein the bend is concavely formed towards the rear cavity.

6. The multi-function sound production device of any one of claims 1-5 wherein the housing includes a bottom wall and a top wall oppositely disposed along the first direction, and a peripheral wall connected between the bottom wall and the top wall, the flexible partition being connected between the peripheral wall and the sound producing unit.

7. The multifunctional sound production device as claimed in claim 1, wherein the magnetic circuit system further comprises a magnetic yoke for fixedly connecting the main magnetic steel and the auxiliary magnetic steel, the magnetic yoke is formed with an avoiding opening, the first side edge is disposed opposite to the main magnetic steel through the avoiding opening, and the second side edge is disposed opposite to the auxiliary magnetic steel through the avoiding opening.

8. The multi-function sound production device of claim 7, wherein in the first direction at least a portion of the drive coil is located within the bypass opening.

9. The multifunctional sound production device as claimed in claim 8, wherein the magnetic yoke comprises a first magnetic yoke and a second magnetic yoke which are oppositely arranged at an interval to form the avoiding opening, and part of the first magnetic yoke is fixedly connected with the main magnetic steel and part of the first magnetic yoke is fixedly connected with the auxiliary magnetic steel; and part of the second magnetic yoke is fixedly connected with the main magnetic steel, and part of the second magnetic yoke is fixedly connected with the auxiliary magnetic steel.

10. The multifunctional sound production device according to claim 1, wherein the magnetic circuit system further comprises a main pole core attached to the main magnetic steel and an auxiliary pole core surrounding the main pole core and attached to the auxiliary magnetic steel;

11. The multifunctional sound production device according to claim 1, wherein the elastic assembly comprises a first elastic member and a second elastic member, the first elastic member comprises a first elastic arm connected with the housing and a second elastic arm bent and extended from the first elastic arm and used for being connected with the sound production unit, the second elastic member comprises a third elastic arm connected with the housing and a fourth elastic arm bent and extended from the third elastic arm and used for being connected with the sound production unit;

12. The multifunctional sound production device according to claim 1, wherein the sound production unit further comprises a frame, the vibration system comprises a voice coil inserted into the magnetic gap, an upper diaphragm, a lower diaphragm disposed opposite to the upper diaphragm along the first direction, and a bobbin disposed between the upper diaphragm and the lower diaphragm, the bobbin comprises a main body portion, a first bending portion bent and extended from an inner edge of the main body portion, and a second bending portion bent and extended from an outer edge of the main body portion, and the voice coil is fixed to the first bending portion;