CN113794975A

CN113794975A - Multifunctional sounding device

Info

Publication number: CN113794975A
Application number: CN202111148084.XA
Authority: CN
Inventors: 肖波; 令狐荣林
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: 2021-12-14

Abstract

The invention provides a multifunctional sounding device, which comprises a shell and a sounding monomer, 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 accommodating cavity is provided with an opening, the multifunctional sounder further comprises a sealing component, an elastic component and a driving coil, the sealing component is connected with the shell to seal the opening, and the sealing component comprises a balancing weight and a flexible sealing piece connected between the balancing weight and the shell; the elastic component is arranged in the containing cavity and is connected between the shell and the balancing weight; the driving coil is arranged on the balancing weight and vibrates together with the balancing weight along a second direction, the driving coil comprises a first side edge and a second side edge arranged opposite to the first side edge, the first side edge and the main magnetic steel are arranged at an interval in the first direction, and the second side edge and the auxiliary magnetic steel are arranged at an interval in the first direction; the second direction is perpendicular to the first direction.

Description

Multifunctional sounding device

[ technical field ] A method for producing a semiconductor device

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

[ background of the invention ]

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, so that a vibration feedback function and voice feedback need to be integrated on the same device, but structural components in the device are increased, and the thickness of the device is greatly increased.

[ summary of the invention ]

The invention aims to provide a multifunctional sounding device which not only has a vibration feedback function and a voice feedback function, but also can reduce the increase of the thickness of the device.

The invention 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; it has an opening to accept the chamber, multi-functional vocal device still includes:

a sealing assembly connected with the housing to seal the opening, the sealing assembly including a weight and a flexible seal connected between the weight and the housing;

the elastic component is arranged in the containing cavity and is connected between the shell and the balancing weight;

the driving coil is arranged on the balancing weight and vibrates together with the balancing weight along a second direction, the driving coil comprises a first side edge and a second side edge arranged opposite to the first side edge, the first side edge and the main magnetic steel are arranged at an interval in the first direction, and the second side edge and the auxiliary magnetic steel are arranged at an interval in the first direction; 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 opposite to the magnetic gap in the first direction.

As an embodiment of the present invention, the flexible sealing member is concavely formed with a curved portion formed by the flexible sealing member being concavely formed toward the receiving cavity, and the flexible sealing member further includes a first connecting portion formed to extend from an outer edge of the curved portion for connection with the housing, and a second connecting portion formed to extend from an inner edge of the curved portion for connection with the weight block.

As an embodiment of the present invention, the weight member includes a main plate portion for fixing the driving coil, and a side plate portion formed by bending and extending from both ends of the main plate portion, which are oppositely disposed in the third direction, in a direction toward the sounding unit;

in the first direction, the projection of the side plate part is at least partially overlapped with the projection of the bending part, and an avoiding notch for avoiding the bending part is formed on the side plate part; wherein the third direction is perpendicular to both the first direction and the second direction.

As an embodiment of the present invention, the main plate portion is formed with a mounting groove in which the driving coil is fixed;

the first side edge and the second side edge jointly enclose into a winding hole, and a positioning part used for assembling the winding hole to the bit is formed at the protrusion of the groove bottom of the mounting groove.

As an embodiment of the present invention, the magnetic circuit system further includes a magnetic yoke fixedly connecting the main magnetic steel and the auxiliary magnetic steel, the magnetic yoke forms an avoidance space, the first side is spaced from the main magnetic steel through the avoidance space, and the second side is spaced from the auxiliary magnetic steel through the avoidance space.

In one embodiment of the present invention, the sub magnetic steel has a chamfered opening formed toward an outer edge of an end surface of the drive coil, and the side plate portion includes a first portion located on a peripheral side of the sounding unit and a second portion extending from the main plate portion and connected to the first portion with respect to the chamfered opening.

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 for connecting with the housing and a second elastic arm formed by bending and extending from the first elastic arm for connecting with the counterweight; the second elastic piece comprises a third elastic arm used for being connected with the shell and a fourth elastic arm formed by bending and extending the third elastic arm and used for being connected with the balancing weight;

the first elastic arm and the third elastic arm are respectively arranged on two sides of the balancing weight along a third direction, and the second elastic arm and the fourth elastic arm are respectively arranged on two sides of the balancing weight along the second direction; or the first elastic arm and the third elastic arm are respectively arranged on two sides of the balancing weight along a second direction, and the second elastic arm and the fourth elastic arm are respectively arranged on two sides of the balancing weight along a third direction; wherein the third direction is perpendicular to the second direction and the first direction.

As an embodiment of the present invention, the sounding unit further includes a basin stand;

the vibration system comprises a voice coil, an upper vibrating diaphragm and a spherical top, wherein the voice coil, the upper vibrating diaphragm and the spherical top are inserted into the magnetic gap, and the upper vibrating diaphragm comprises a first hinge part, a first outward flange formed by extending from the outer edge of the first hinge part and a first inward flange formed by extending from the inner edge of the first hinge part; the first outer flanging is fixed on the basin frame, the first inner flanging is fixed on the ball top, and the ball top is fixedly connected with the voice coil.

the vibration system comprises a voice coil inserted in the magnetic gap, an upper vibrating diaphragm, a lower vibrating diaphragm arranged opposite to the upper vibrating diaphragm along the first direction, and a framework arranged between the upper vibrating diaphragm and the lower vibrating diaphragm; the framework comprises a main body part, a first bending part and a second bending part, the first bending part is bent and extended from the inner edge of the main body part, the second bending part is bent and extended from the outer edge of the main body part, and the voice coil is fixed to the first bending part; the upper vibrating diaphragm comprises a first hinge part, a first outward flange formed by extending from the outer edge of the first hinge part and a first inward flange formed by extending from the inner edge of the first hinge part, the first outward flange is fixed on the basin frame, and the first inward flange 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 second flange part is formed by the lower vibrating diaphragm protruding towards the first flange part, the second elastic arm is located on one side, away from the first flange part, of the second flange part, and the fourth elastic arm is located on the other side, away from the first flange part, of the second flange part.

As an embodiment of the present invention, the upper diaphragm further includes a third loop portion disposed inside the first loop portion, a third outward flange extending from an outer edge of the third loop portion, and a third inward flange extending from an inner edge of the third loop portion, and the sounding unit further includes a positioning ring sleeved on the magnetic circuit system, wherein the third outward flange is fixed on the main body portion of the framework, and the third inward flange is fixed on the positioning ring.

As an embodiment of the present invention, the vibration system further includes a dome disposed on the main body portion of the frame, and the dome is located inside the first inward flange.

The invention has the beneficial effects that: the flexible sealing element is connected between the balancing weight and the shell, so that on one hand, the combination of the balancing weight and the flexible sealing element can serve as a cover body to seal the opening of the shell, the cover body is omitted, the thickness of a device can be reduced, and on the other hand, the balancing weight can be ensured to reciprocate relative to the shell to form vibration by virtue of the flexible physical property of the flexible sealing element; and make the relative casing of balancing weight stable the setting through elastic component's connection, fix the drive coil on the balancing weight again, and make the first side edge first direction (vibration system's vibration direction) of drive coil set up with the relative interval of main magnet steel, the second side edge first direction of drive coil sets up with vice magnet steel relative interval, thereby the balancing weight can be at main magnet steel, vice magnet steel vibrates along with first direction vertically second direction along with the drive coil under the interact of drive coil, be about to whole drive coil and balancing weight as a active cell, the sound production monomer that has main magnet steel and vice magnet steel is as a stator, through drive coil and main magnet steel, the interact power between the vice magnet steel makes the drive balancing weight vibration and then realizes the vibration feedback of device. The balancing weight in the technical scheme not only acts as the vibration of the rotor to realize the shell, but also acts as the cover to seal the shell to be open, so that the device not only has the vibration feedback function and the voice feedback function, and the thickness increase amplitude of the device can be reduced.

[ description of the drawings ]

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

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

FIG. 3 is a schematic view of a part of the multifunctional sound generating device according to the present invention;

FIG. 4 is an exploded view of FIG. 3;

FIG. 5 is a schematic diagram of a partially exploded structure of the multi-function sound producing device;

FIG. 6 is a cross-sectional view taken along line A-A of FIG. 1;

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

FIG. 8 is a cross-sectional view of a multi-function sound producing device according to another embodiment of the present invention;

fig. 9 is a cross-sectional view of a multifunctional sound producing device according to another embodiment of the present invention;

FIG. 10 is an enlarged view of a portion of FIG. 6 at C;

fig. 11 is a partial enlarged view of fig. 7 at D.

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; 10c, opening the opening; 20. a sounding monomer; 21. a vibration system; 211. a voice coil; 212. an upper vibrating diaphragm; 2121. a first hinge part; 2122. a first outward flange; 2123. a first inner flange; 2124. a third hinge part; 2125. a third outward flange; 2126. third 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; 2221. chamfering the corner opening; 223. a magnetic yoke; 2231. avoiding a space; 224. a main pole core; 225. a secondary pole core; 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. a seal assembly; 31. a balancing weight; 311. a main plate portion; 3111. mounting grooves; 3112. a positioning part; 312. a side plate portion; 312a, avoiding the notch; 3121. a first portion; 3121a, a step; 3122. a second portion; 32. a flexible seal; 321. a bending section; 322. a first connection portion; 323. a second connecting portion; 40. an elastic component; 41. a first elastic member; 411. a first resilient arm; 412. a second resilient arm; 42. a second elastic member; 421. a third elastic arm; 422. a fourth elastic arm; 50. a drive coil; 50a, a winding hole; 51. a first side edge; 52. a second side edge.

[ 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 invention 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 invention. 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 invention is further described with reference to the following figures and embodiments. The invention 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 11, the multifunctional sound generating device 100 includes a housing 10 having a receiving cavity 10a and a sound generating unit 20 received in the receiving cavity 10a and separating the receiving cavity 10a into a front cavity 10a1 and a rear cavity 10a2, wherein the housing 10 is opened with a sound generating hole 10b communicating with the front cavity 10a1 to generate sound; the rear cavity 10a2 may be filled with sound absorbing powder to improve the low frequency acoustic performance of the device.

With reference to fig. 1 and 6, the sounding unit 20 includes 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 includes a main magnetic steel 221 and a secondary magnetic steel 222 disposed around the main magnetic steel 221 to form a magnetic gap 22a, the vibration system 21 includes 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 secondary magnetic steel 222 to realize vibration of the vibration system 21, thereby realizing voice feedback indication of the device.

Referring to fig. 2-4 and 6-11, in order to realize the vibration feedback function of the device and reduce the increase of the thickness of the device, the housing chamber 10a has an opening 10c, and the device further includes a sealing member 30, an elastic member 40 and a driving coil 50; a sealing assembly 30 is connected with the housing 10 to seal the opening 10c, the sealing assembly 30 includes a weight 31 and a flexible sealing member 32 connected between the weight 31 and the housing 10; the elastic component 40 is arranged in the accommodating cavity 10a, and the elastic component 40 is connected between the shell 10 and the counterweight 31; the driving coil 50 is disposed on the weight block 31 and vibrates together with the weight block 31 along the second direction, the driving coil 50 includes a first side 51 and a second side 52 disposed opposite to the first side 51, and in the first direction, the first side 51 is disposed at an interval opposite to the main magnet 221, and the second side 52 is disposed at an interval opposite to the auxiliary magnet 222.

As shown in fig. 1, 3, 6 and 7, the Z direction is a first direction, the X direction is a second direction, the Y direction is a third direction, the first direction is a vibration direction of the vibration system 21, the second direction is a vibration direction of the weight 31, 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 flexible sealing member 32 is connected between the weight 31 and the housing 10, so that on one hand, the combination of the weight 31 and the flexible sealing member 32 can serve as a cover to seal the opening 10c of the housing 10, thereby omitting the cover and reducing the thickness of the device, and on the other hand, the flexible physical property of the flexible sealing member 32 ensures that the weight 31 can reciprocate relative to the housing 10 to form vibration; and the weight block 31 is stably arranged relative to the housing 10 by the connection of the elastic component 40, and then the driving coil 50 is fixed on the weight block 31, the first side 51 of the driving coil 50 is arranged opposite to the main magnet 221 along the first direction (the vibration direction of the vibration system 21), the second side 52 of the driving coil 50 is arranged opposite to the auxiliary magnet 222 along the first direction, so that the weight member 31 is vibrated along the driving coil 50 in the second direction perpendicular to the first direction by the interaction of the main and sub magnetic steels 221 and 222 and the driving coil 50, namely, the whole driving coil 50 and the balancing weight 31 are used as a mover, the sounding unit 20 with the main magnetic steel 221 and the auxiliary magnetic steel 222 is used as a stator, the driving coil 50 drives the counterweight block 31 to vibrate through the interaction force between the driving coil 50 and the main magnet steel 221 and the auxiliary magnet steel 222, so that the vibration feedback of the device is realized. The counterweight 31 in this technical scheme not only serves as the mover to realize the vibration of the housing 10, but also serves as the cover to seal the opening 10c of the housing 10, so that the device not only has the vibration feedback function and the voice feedback function, but also can reduce the increase of the thickness of the device.

Note that the polarity of the end of the main magnet 221 facing the drive coil 50 is opposite to the polarity of the end of the sub magnet 222 facing the drive coil 50, so that the drive coil 50 can vibrate.

In some specific embodiments, referring to fig. 6, the first side 51 and the second side 52 jointly enclose the winding hole 50a, and in the first direction, the winding hole 50a is disposed opposite to the magnetic gap 22a, and the relative positions between the driving coil 50 and the main and sub

magnetic steels

221 and 222 are optimized to increase the relative force between the driving coil 50 and the main and sub

magnetic steels

221 and 222, so as to ensure the driving of the sound-generating unit 20.

As shown in fig. 3 and 6, two drive coils 50 are provided, and the two drive coils 50 are arranged and fixed on the counterweight block 31 along the second direction, and the number of the drive coils 50 is increased in a limited space, so that the relative area between the drive coils 50 and the main magnetic steel 221 and the relative area between the drive coils 50 and the secondary magnetic steel 222 can be increased, and the interaction force between the drive coils 50 and the main magnetic steel 221 and the secondary magnetic steel 222 can be increased.

In one embodiment, referring to fig. 2-4, the elastic assembly 40 includes a first elastic member 41 and a second elastic member 42, the first elastic member 41 includes a first elastic arm 411 connected to the housing 10 and a second elastic arm 412 bent and extended from the first elastic arm 411 for connecting to the weight 31, and the second elastic member 42 includes a third elastic arm 421 connected to the housing 10 and a fourth elastic arm 422 bent and extended from the third elastic arm 421 for connecting to the weight 31.

In some embodiments, the first elastic arm 411 and the third elastic arm 421 are respectively disposed on two sides of the weight block 31 along the third direction, and the second elastic arm 412 and the fourth elastic arm 422 are respectively disposed on two sides of the weight block 31 along the second direction; or, the first elastic arm 411 and the third elastic arm 421 are respectively disposed on two sides of the counterweight block 31 along the second direction, and the second elastic arm 412 and the fourth elastic arm 422 are respectively disposed on two sides of the counterweight block 31 along the third direction; thereby achieving stable support of the weight 31 by the elastic member 40.

In some embodiments, the first elastic arm 411 may be connected to the housing 10 by an adhesive member, and the second elastic arm 412 may be connected to the weight 31 by an adhesive member.

The third elastic arm 421 can be connected to the housing 10 by an adhesive member having viscosity, and the fourth elastic arm 422 can be connected to the weight member 31 by an adhesive member having viscosity.

The structure of the sound emitting unit 20 is exemplified below:

in one embodiment, referring to fig. 9, the vibration system 21 further includes an upper diaphragm 212 and a dome 214; the upper diaphragm 212 includes a first collar portion 2121, a first outward flange 2122 formed to extend from an outer edge of the first collar portion 2121, and a first inward flange 2123 formed to extend from an inner edge of the first collar portion 2121. The sounding unit 20 further includes a frame 23, wherein the first outward flange 2122 is fixed on the frame 23, the first inward flange 2123 is fixed on the dome 214, and the dome 214 is fixedly connected to the voice coil 211, so that the voice coil 211 drives the upper diaphragm 212 to vibrate.

In another embodiment, referring to fig. 8, the sound generating unit 20 further includes a frame 23, and the vibration system 21 further includes an upper diaphragm 212, a lower diaphragm 215 disposed opposite to the upper diaphragm 212 along the first direction, and a skeleton 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 a first collar portion 2121, a first outward flange 2122 extending from an outer edge of the first collar portion 2121, and a first inward flange 2123 extending from an inner edge of the first collar portion 2121, the first outward flange 2122 is fixed on the basin frame 23, and the first inward flange 2123 is fixed on the main body portion 2131 of the framework 213; the lower diaphragm 215 includes a second ring portion 2151 disposed opposite to the first ring portion 2121, a second outer flange 2152 formed by extending from an outer edge of the second ring portion 2151, and a second inner flange 2153 formed by extending from an inner edge of the second ring portion 2151; the second outer turned edge 2152 is fixed on the end face of the basin frame 23 far away from the first outer turned edge 2122, and the second inner turned edge 2153 is fixed on the second bent portion 2133.

In addition, the vibration system 21 further includes a dome 214 disposed on the main body portion 2131 of the frame 213, and the dome 214 is located inside the first inward turned edge 2123, so that the strength of the frame 213 can be enhanced by the dome 214, the torsion resistance and the anti-sway capability of the frame 213 can be improved, and the acoustic performance of the sound generating unit 20 can be improved.

Referring to fig. 8, there are two lower diaphragms 215, and the two lower diaphragms 215 are arranged along the second direction to be opposite to both ends of the upper diaphragm 212; the second ring-folding portion 2151 is formed by recessing the lower diaphragm 215 toward the first ring-folding portion 2121, so that space on one side of the second ring-folding portion 2151 away from the first ring-folding portion 2121 is saved; further, the second elastic arm 412 may be located at a side of one of the ring portions away from the first ring portion 2121, and the fourth elastic arm 422 may be located at a side of the other second ring portion 2151 away from the first ring portion 2121. Therefore, the second elastic arm 412 and the fourth elastic arm 422 move in the direction away from the inner wall of the shell 10, the distance between the second elastic arm 412 and the shell 10 and the distance between the fourth elastic arm 422 and the shell 10 are increased, and therefore the space of the rear cavity 10a2 is increased, the sound absorbing powder can be filled in the space, and the acoustic performance of the device is improved.

The sounding 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 fixed to the second outer flange 2152, a second fixing arm 252 fixed to the second inner flange 2153, and a resilient arm 253 connected between the first fixing arm 251 and the second fixing arm 252.

In another embodiment, referring to fig. 4 and 6, the sound generating unit 20 further includes a frame 23, and the vibration system 21 further includes an upper diaphragm 212, a lower diaphragm 215 disposed opposite to the upper diaphragm 212 along the first direction, and a skeleton 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 a first collar portion 2121, a first outward flange 2122 extending from an outer edge of the first collar portion 2121, and a first inward flange 2123 extending from an inner edge of the first collar portion 2121, the first outward flange 2122 is fixed on the basin frame 23, and the first inward flange 2123 is fixed on the main body portion 2131 of the framework 213; the lower diaphragm 215 includes a second ring portion 2151 disposed opposite to the first ring portion 2121, a second outer flange 2152 formed by extending from an outer edge of the second ring portion 2151, and a second inner flange 2153 formed by extending from an inner edge of the second ring portion 2151; the second outer turned edge 2152 is fixed on the end surface of the basin frame 23 far away from the first outer turned edge 2122, and the second inner turned edge 2153 is fixed on the second bent portion 2133; the upper diaphragm 212 further includes a third ring part 2124 disposed inside the first ring part 2121, a third flanging 2125 formed by extending from an outer edge of the third ring part 2124, and a third flanging 2126 formed by extending from an inner edge of the third ring part 2124, and the sounding unit 20 further includes a positioning ring 24 sleeved on the magnetic circuit system 22, wherein the third flanging 2125 is fixed on the main body portion 2131 of the framework 213, and the third flanging 2126 is fixed on the positioning ring 24.

Referring to fig. 6, there are two lower diaphragms 215, and the two lower diaphragms 215 are arranged along the second direction to be opposite to both ends of the upper diaphragm 212; the second ring-folding portion 2151 is formed by recessing the lower diaphragm 215 toward the first ring-folding portion 2121, so that space on one side of the second ring-folding portion 2151 away from the first ring-folding portion 2121 is saved; further, the second resilient arm 412 is located on a side of one of the second ring portions 2151 away from the first ring portion 2121, and the fourth resilient arm 422 is located on a side of the other of the second ring portions 2151 away from the first ring portion 2121. Therefore, the second elastic arm 412 and the fourth elastic arm 422 move in the direction away from the inner wall of the shell 10, the distance between the second elastic arm 412 and the shell 10 and the distance between the fourth elastic arm 422 and the shell 10 are increased, and therefore the space of the rear cavity 10a2 is increased, the sound absorbing powder can be filled in the space, and the acoustic performance of the device is improved.

Referring to fig. 3, 4, 6 and 7, in one embodiment, the flexible seal 32 is concavely formed with a bend 321. Therefore, when the weight block 31 vibrates in the second direction, the flexible sealing member 32 is more easily deformed by being pushed and pulled by the weight block 31, so that the weight block 31 is more easily vibrated.

In some specific embodiments, the curved portion 321 has a ring shape, and the curved portion 321 having the ring shape is disposed around the weight 31.

In some specific embodiments, the curved portion 321 is formed by the flexible sealing member 32 being concave toward the receiving chamber 10 a. Namely, the bending portion 321 is retracted into the containing cavity 10a to avoid the bending portion 321 protruding from the housing 10 to increase the volume of the device.

In one embodiment, the flexible sealing member 32 further includes a first connection portion 322 formed extending from an outer edge of the bent portion 321 for connection with the housing 10, and a second connection portion 323 formed extending from an inner edge of the bent portion 321 for connection with the weight 31. The stable connection of the flexible sealing member 32 to the housing 10 is achieved by the first connection portion 322, and the stable connection of the flexible sealing member 32 to the weight block 31 is achieved by the second connection portion 323.

In one embodiment, referring to fig. 11, the weight 31 includes a main plate 311 for fixing the driving coil 50, and side plates 312 formed by bending and extending from two ends of the main plate 311, which are oppositely disposed in the third direction, in a direction toward the sounding unit 20. Since the weight block 31 vibrates in the second direction, a space formed by the weight block 31 and the housing 10 in the second direction is used for the vibration; in order to increase the weight of the weight block 31 to improve the vibration effect of the device, the weight block 31 includes not only the main plate portion 311 for fixing the driving coil 50, but also two side plate portions 312, and the two side plate portions 312 are formed by bending and extending two ends of the main plate portion 311 along the third direction, and the side plate portions 312 extend along the direction toward the sound-emitting single body 20, that is, the side plate portions 312 are accommodated in the space formed by the weight block 31 and the housing 10 in the third direction and the space formed by the sound-emitting single body 20 and the housing 10 in the third direction, so as to increase the weight of the weight block 31; on the other hand, the assembly of the weight 31 with respect to the sound generating unit 20 can be guided by the two side plate portions 312, thereby improving the assembly speed and quality.

In the first direction, the projection of the side plate 312 at least partially overlaps the projection of the curved portion 321, and the side plate 312 is formed with a relief notch 312a for relieving the curved portion 321. The position of the side plate portion 312 relative to the bent portion 321 is set to utilize the space in the accommodating cavity 10a as much as possible to increase the volume of the side plate portion 312, i.e., to increase the weight of the counterweight 31; meanwhile, the side plate 312 is formed with a relief notch 312a for relieving the curved portion 321 to ensure that the curved portion 321 can be recessed into the housing cavity 10a, and the side plate 312 and the curved portion 321 are closely matched to make full use of the space of the housing cavity 10 a.

In some specific embodiments, with continued reference to fig. 11, the outer edge of the end surface of the secondary magnetic steel 222 facing the driving coil 50 is formed with a chamfered opening 2221, and the side plate portion 312 includes a first portion 3121 located on the circumferential side of the sound generating unit 20 and a second portion 3122 extending from the main plate portion 311 and opposing the chamfered opening 2221 to connect with the first portion 3121. By forming the chamfered opening 2221 in the secondary magnetic steel 222, the second portion 3122 can be disposed opposite to the chamfered opening 2221 to increase the thickness of the second portion 3122, so that the connection between the first portion 3121 and the main plate portion 311 is enhanced, and the weight of the counterweight 31 is increased.

In some specific embodiments, referring to fig. 3 and 4, the main plate portion 311 is formed with a mounting groove 3111, and the driving coil 50 is fixed in the mounting groove 3111. The installation of the relative balancing weight 31 of drive coil 50 has been realized on the one hand through mounting groove 3111, and on the other hand carries out the part with the thickness of drive coil 50 and the thickness of balancing weight 31 and overlaps to can reduce the thickness of device, be favorable to the development of frivolousization.

Further, a groove bottom of the mounting groove 3111 is protruded to form a positioning portion 3112 for alignment-assembling into the winding hole 50 a. The driving coil 50 is quickly positioned and mounted by the positioning portion 3112.

The magnetic circuit system 22 further includes a magnetic yoke 223 for fixedly connecting the main magnet steel 221 and the auxiliary magnet steel 222, the magnetic yoke 223 forms an avoiding space 2231, the first side 51 is relatively spaced from the main magnet steel 221 through the avoiding space 2231, and the second side 52 is relatively spaced from the auxiliary magnet steel 222 through the avoiding space 2231.

In some specific embodiments, referring to fig. 6 and 7, in the first direction, the yoke 223 is partially positioned in the mounting groove 3111. When guaranteeing that yoke 223 dodges drive coil 50, make yoke 223 part accommodate in mounting groove 3111 of balancing weight 31, consequently, drive coil 50 also will be partly located the dodging space 2231 of yoke 223, carries out the partial coincidence with the thickness of balancing weight 31, drive coil 50 and yoke 223, can further reduce the increase range of drive coil 50, balancing weight 31 to device thickness, is favorable to reducing the thickness of device promptly.

In some specific embodiments, the yoke 223 is located between the two driving coils 50, the middle portion of the yoke 223 is fixedly connected to the main magnet 221, and the two ends of the yoke 223 are respectively fixedly connected to the secondary magnet 222.

Referring to fig. 2, 6 and 7, the magnetic circuit system 22 further includes a main pole core 224 attached to the first main magnetic steel 221, and an auxiliary pole core 225 surrounding the main pole core 224 and attached to the auxiliary magnetic steel 222.

In some specific embodiments, referring to fig. 11, the first portion 3121 is formed with a step 3121a, and the step 3121a gives way to the secondary pole core 225, so that the driving coil 50 fixed on the weight block 31 maintains a certain distance from the primary magnetic steel 221 and the secondary magnetic steel 222, and the hardness of the elastic member 40 and the flexible sealing member 32 is prevented from failing to maintain a certain distance from the driving coil 50 from the primary magnetic steel 221 and the secondary magnetic steel 222.

Referring to fig. 6 and 7, the magnetic circuit system 22 further includes an upper magnetic steel 226 attached to the main pole 224 on the side away from the main magnetic steel 221, and the positioning ring 24 surrounds and abuts the upper magnetic steel 226.

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 base 2261, so as to achieve stable setting 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 invention 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 generate 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, it has an uncovered to accept the chamber, 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 aperture, and wherein the wire winding aperture is directly opposite the magnetic gap in the first direction.

4. The multi-function sound production device of claim 1, wherein the flexible sealing member recess is formed with a curved portion formed by the flexible sealing member recess toward the receiving cavity, the flexible sealing member further comprising a first connecting portion formed extending from an outer edge of the curved portion for connection with the housing, and a second connecting portion formed extending from an inner edge of the curved portion for connection with the weight.

5. The multi-function sound production device according to claim 4, wherein the weight member includes a main plate portion for fixing the driving coil, and side plate portions formed by bending and extending from opposite ends of the main plate portion in the third direction in a direction toward the single sound production body;

6. The multi-function sound production device according to claim 5, wherein the main plate portion is formed with a mounting groove in which the driving coil is fixed;

7. The multifunctional sound production device as claimed in claim 6, wherein the magnetic circuit system further comprises a magnetic yoke fixedly connecting the main magnetic steel and the auxiliary magnetic steel, the magnetic yoke is formed with an avoiding space, the first side is spaced from the main magnetic steel through the avoiding space, and the second side is spaced from the auxiliary magnetic steel through the avoiding space.

8. The multi-function sound production device according to claim 5, wherein the sub-magnetic steel is formed with a chamfered opening toward an outer edge of the end surface of the drive coil, and the side plate portion includes a first portion located on a peripheral side of the sounding unit and a second portion extending from the main plate portion and opposing the chamfered opening to connect with the first portion.

9. The multifunctional sound production device as claimed in claim 1, wherein the resilient assembly comprises a first resilient member and a second resilient member, the first resilient member comprises a first resilient arm for connecting with the housing and a second resilient arm formed by bending and extending from the first resilient arm for connecting with the weight block; the second elastic piece comprises a third elastic arm used for being connected with the shell and a fourth elastic arm formed by bending and extending the third elastic arm and used for being connected with the balancing weight;

10. The multi-function sound producing device of claim 1, wherein the sound producing unit further comprises a frame;

11. The multi-function sound producing device of claim 9, wherein the sound producing unit further comprises a frame;

12. The multifunctional sound production device according to claim 11, wherein the upper diaphragm further comprises a third ring portion disposed inside the first ring portion, a third outward flange extending from an outer edge of the third ring portion, and a third inward flange extending from an inner edge of the third ring portion, and the sound production unit further comprises a positioning ring sleeved on the magnetic circuit system, wherein the third outward flange is fixed on the main body portion of the frame, and the third inward flange is fixed on the positioning ring.

13. The multi-function sound production device of claim 11, wherein the vibration system further comprises a dome disposed on the main body portion of the skeleton, and the dome is located inside the first inner flange.