CN213938307U - Sound production device - Google Patents

Sound production device Download PDF

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Publication number
CN213938307U
CN213938307U CN202022847190.4U CN202022847190U CN213938307U CN 213938307 U CN213938307 U CN 213938307U CN 202022847190 U CN202022847190 U CN 202022847190U CN 213938307 U CN213938307 U CN 213938307U
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CN
China
Prior art keywords
corner
elastic conductive
vibrating
diaphragm
basin frame
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Active
Application number
CN202022847190.4U
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Chinese (zh)
Inventor
金鑫
张帆
沈凯华
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AAC Technologies Pte Ltd
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AAC Technologies Pte Ltd
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Priority to CN202022847190.4U priority Critical patent/CN213938307U/en
Priority to PCT/CN2020/140081 priority patent/WO2022110461A1/en
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Publication of CN213938307U publication Critical patent/CN213938307U/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00Diaphragms for electromechanical transducers; Cones
    • H04R7/16Mounting or tensioning of diaphragms or cones
    • H04R7/18Mounting or tensioning of diaphragms or cones at the periphery
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06Loudspeakers

Abstract

The utility model provides a sounding device, which comprises a basin frame, a vibration system and a magnetic circuit system, wherein the vibration system and the magnetic circuit system are respectively fixed on the basin frame, the magnetic circuit system is provided with a magnetic gap, the vibration system comprises a vibration diaphragm fixed on the basin frame, a voice coil inserted in the magnetic gap to drive the vibration of the vibration diaphragm and an elastic conductive piece fixed on the basin frame, the vibration diaphragm comprises a vibration part, a folding ring part extending from the vibration part and surrounding the vibration part, a fixed part connected with the folding ring part and an extending part bending and extending from the fixed part to the magnetic circuit system; the extension part comprises a pair of long shaft parts and a pair of short shaft parts which are oppositely arranged respectively, a first corner part for connecting the adjacent long shaft parts and short shaft parts, and a second corner part arranged at the inner side of the first corner part at intervals; the basin frame is clamped between the first corner part and the second corner part; the elastic conductive piece is fixedly connected with the first corner part, the second corner part and the basin stand; the basin frame of the sounding device can effectively support the elastic conductive piece, so that the elastic conductive piece is not easy to deform, and the performance of the sounding device is improved.

Description

Sound production device
[ technical field ] A method for producing a semiconductor device
The utility model relates to an acoustoelectric field especially relates to a sounding device.
[ background of the invention ]
With the advent of the internet era, the number of mobile terminal devices has increased. Among the mobile devices, the mobile phone is undoubtedly the most common and portable mobile terminal device. Sound production devices for playing sounds such as music are widely used in mobile terminal devices such as mobile phones, and a vibration system in the sound production devices is particularly important, and the whole sound production device produces sound through vibration of the vibration system.
The related art sounder comprises a basin frame, a vibration system fixed on the basin frame and a magnetic circuit system for driving the vibration system to vibrate and sound; the vibration system comprises a vibrating diaphragm, a voice coil, a framework and an elastic conductive piece, wherein the voice coil is inserted into the magnetic gap to drive the vibrating diaphragm to vibrate, the framework is connected with the vibrating diaphragm and supports and suspends the voice coil below the vibrating diaphragm, the elastic conductive piece is connected with one side, away from the vibrating diaphragm, of the framework, and the voice coil comprises a lead wire which is electrically connected with the elastic conductive piece; the magnetic circuit system comprises a magnetic yoke and magnetic steel fixed on the magnetic yoke, wherein the magnetic steel comprises main magnetic steel and auxiliary magnetic steel forming a magnetic gap with the main magnetic steel.
However, in the related art, the elastic conductive member is easily deformed when being pressed, resulting in poor contact and poor performance of the sound generating device.
Therefore, there is a need to provide a new sound generation device to solve the above problems.
[ Utility model ] content
An object of the utility model is to provide a can effectively support elasticity electrically conductive for elasticity electrically conductive is difficult for taking place to warp, thereby improves the performance of vocal ware.
In order to achieve the above object, the present invention provides a sound generating device, which includes a frame, a vibration system respectively fixed on the frame, and a magnetic circuit system for driving the vibration system to vibrate and generate sound, wherein the magnetic circuit system has a magnetic gap, the vibration system includes a vibrating diaphragm fixed on the frame, a voice coil inserted in the magnetic gap to drive the vibrating diaphragm to vibrate, and an elastic conductive member fixed on the frame, the vibrating diaphragm includes a vibrating portion, a bending portion extending from the vibrating portion and surrounding the vibrating portion, a fixing portion connected with the bending portion, and an extending portion bending and extending from the fixing portion to the magnetic circuit system; the extension part comprises a pair of long shaft parts which are oppositely arranged, a pair of short shaft parts which are oppositely arranged, and corner parts which connect the adjacent long shaft parts and the short shaft parts; the basin frame is connected with the long shaft part, the short shaft part and the corner part; the corner part comprises a first corner part arranged on the outer side of the basin frame and a second corner part arranged on the inner side of the basin frame; the elastic conductive piece is fixedly connected with the first corner part, the second corner part and the basin frame.
Preferably, the basin stand comprises a pair of long side parts arranged at intervals, a pair of short side parts arranged at intervals and a corner part connecting the adjacent long side parts and the short side parts, and the corner part is clamped between the first corner part and the second corner part; the first corner part, the second corner part and the corner part are fixedly connected with the elastic conductive piece.
Preferably, the long shaft portion is provided with a first notch, the short shaft portion is provided with a second notch, each long side portion is accommodated in the first notch and fixedly connected with the long shaft portion, and each short side portion is accommodated in the second notch and fixedly connected with the short shaft portion.
Preferably, a first pad is disposed at a position, corresponding to the corner portion, of one side of the elastic conductive member away from the diaphragm, and the corner portion is connected to a central region of the first pad.
Preferably, the vibrating diaphragm further comprises a dome, the vibrating portion is provided with a through hole, and the dome is located in the through hole and arranged at an interval with the vibrating portion.
Preferably, the vibration system further includes a skeleton fixed to the diaphragm, the skeleton includes a bottom wall fixed to the vibration portion and a side wall extending from the bottom wall to the magnetic circuit direction in a bending manner, and the bottom wall connects the vibration portion and the dome; one end of the side wall, which is far away from the vibrating diaphragm, is fixedly connected with the voice coil and the elastic conductive piece.
Preferably, the bottom wall is annular, and the side wall includes a first side wall extending from the outer periphery of the bottom wall in a bending manner towards the magnetic circuit system direction and a second side wall extending from the inner periphery of the bottom wall in a bending manner towards the magnetic circuit system direction; the first side wall is connected with the elastic conductive piece, the second side wall is connected with the voice coil, the first side wall is opposite to the voice coil at intervals, and the bottom wall, the first side wall and the voice coil jointly enclose the accommodating space.
Preferably, the electrically conductive piece of elasticity include with the basin frame reaches the skeleton is kept away from the electrically conductive body of elasticity that vibrating diaphragm one end is connected, by the electrically conductive body of elasticity is followed the skeleton to buckling extended linking arm in the accommodating space and with the second pad that the linking arm is connected, the second pad with the diapire is kept away from one side fixed connection of vibrating diaphragm.
Preferably, the connection arm includes a first bending portion extending from the elastic conductive body to the bottom wall, and a second bending portion extending from the first bending portion to the voice coil; the second bonding pad comprises two second bending parts which are respectively arranged on two sides of the second bending part and connected with the second bending part, the first bending part and the first side wall are arranged in parallel at intervals, and the second bending part and the second bonding pad are connected with one side, close to the voice coil, of the bottom wall.
Compared with the prior art, the sound production device of the present invention, the vibrating diaphragm includes a vibrating portion, a bending portion extending from the vibrating portion and surrounding the vibrating portion, a fixing portion connected to the bending portion, and an extending portion bending and extending from the fixing portion to the magnetic circuit system; the extension part comprises a pair of long shaft parts which are oppositely arranged, a pair of short shaft parts which are oppositely arranged, a first corner part which connects the adjacent long shaft parts and the short shaft parts, and a second corner part which is arranged at the inner side of the first corner part at intervals; the corner portion is sandwiched between the first corner portion and the second corner portion; the elastic conductive piece is fixedly connected with the first corner part, the second corner part and the corner part; the corner parts are arranged in the central area above the first bonding pad of the elastic conductive part, so that the first bonding pad can be effectively supported by the corner parts, the height and the shape of the first bonding pad are not changed after the first bonding pad is pressed, and the reliability and the acoustic performance of the sounding device are improved.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, wherein:
fig. 1 is a schematic view of the sound production device according to the present invention;
FIG. 2 is a schematic view of the assembly of the diaphragm and the frame of the sound device of the present invention;
fig. 3 is a schematic view of the structure of the diaphragm of the sound device of the present invention;
FIG. 4 is a schematic view of a partially assembled sound device according to the present invention;
FIG. 5 is a schematic view of the assembly of the elastic conductive member and the frame of the sound generating device of the present invention;
fig. 6 is a schematic perspective view of the sound device of the present invention;
FIG. 7 is a cross-sectional view taken along line A-A of FIG. 6;
FIG. 8 is a cross-sectional view taken along line B-B of FIG. 6;
fig. 9 is a schematic view illustrating the assembly of the second magnetic conductive plate and the elastic conductive member of the sound generating device of the present invention.
[ detailed description ] embodiments
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1-9, the present invention provides a sound-generating device 100, the sound-generating device 100 includes a basin frame 1, a vibration system fixed to the basin frame 1, and a magnetic circuit system 3 for driving the vibration system to vibrate and generate sound, wherein the magnetic circuit system 3 has a magnetic gap 30.
Specifically, the vibration system includes a vibrating diaphragm 21 fixed to the basin frame 1, a voice coil 22 inserted in the magnetic gap 30 to drive the vibrating diaphragm 21 to vibrate, a framework 23 connected to the vibrating diaphragm 21, a resilient conductive member 24 fixed to the basin frame 1 and far away from one side of the vibrating diaphragm 21 by the framework 23, and an auxiliary vibrating diaphragm 25 fixed to one side of the vibrating diaphragm 21 by the resilient conductive member 24, wherein the framework 23 and the voice coil 22 jointly enclose the accommodating space 10.
The diaphragm 21 includes a vibrating portion 211 having a through hole 2110, a loop portion 212 extending from a periphery of the vibrating portion 211 and surrounding the vibrating portion 211, a fixing portion 213 extending from a side of the loop portion 212 away from the vibrating portion 211 and fixed to the frame 1, an extending portion 214 extending from the fixing portion 213 to the magnetic circuit 3, and a dome 215; the vibration parts 211 surround the dome 215 and are spaced apart from each other.
The extension part 214 includes a pair of major axis portions 2140 disposed oppositely, a pair of minor axis portions 2141 disposed oppositely, and a corner portion 2142 connecting between the adjacent major axis portions 2140 and minor axis portions 2141; the frame 1 is connected to the long axis portion 2140, the short axis portion 2141, the fixing portion 213, and the corner portion 2142.
The corner portions 2142 include a first corner portion 2142a formed by bending and extending from the outer edge of the fixing portion 213 and a second corner portion 2142b formed by extending from the fixing portion 213 close to the side of the loop portion 212 toward the magnetic circuit system 3, that is, the first corner portion 2142a and the second corner portion 2142b are arranged in parallel and at an interval; the basin frame 1 is clamped between the first corner portion 2142a and the second corner portion 2142b at the corresponding positions of the two corner portions, so that the reliability of the sounding device is improved; the elastic conductive member 24 is fixedly connected to the first corner portion 2142a, the second corner portion 2142b, and the basin stand 1.
The long shaft portion 2140 has a first notch 2144, and the short shaft portion 2141 has a second notch 2145.
The basin stand 1 comprises a pair of long side parts 10 arranged at intervals, a pair of short side parts 11 arranged at intervals and a corner part 12 connecting the adjacent long side parts 10 and short side parts 11, wherein the corner part 12 is clamped between the first corner part 2142a and the second corner part 2142 b; the short side part 11 and the corner part 12 are fixedly connected with the elastic conductive piece 24.
The long side portion 10 is accommodated in the first notch 2144 and is fixedly connected to the long side portion 2140, and the short side portion 11 is accommodated in the second notch 2145 and is fixedly connected to the short side portion 2141.
The voice coil 22 is racetrack shaped and has two leads 220.
The bobbin 23 includes a ring-shaped bottom wall 231 fixed to the vibrating portion 211, and a side wall 232 extending from the bottom wall 231 in a direction of the magnetic circuit system 3.
Specifically, the side wall 232 includes a first side wall 2321 bent and extended from the outer periphery of the bottom wall 231 toward the magnetic circuit system 3, and a second side wall 2322 bent and extended from the inner periphery of the bottom wall 231 toward the magnetic circuit system 3. The first side wall 2321 includes two and is set up at interval in the relative both sides of minor axis of voice coil 22, the second side wall 2322 is cyclic annular and with the voice coil 22 is connected, the second side wall 2322 with the voice coil 22 is close to the one end of vibrating diaphragm 21 is connected, so the design has improved the reliability of sound production device.
The first side wall 2321 is opposite to the voice coil 22 at a distance, and the bottom wall 231, the first side wall 2321 and the voice coil 22 together enclose the accommodating space 10.
Specifically, the bottom wall 231 is located between the dome 214 and the vibration portion 211, and connects the vibration portion 211 and the dome 214 into an integral structure, so that the reliability is better.
The two elastic conductive members 24 are disposed on two short axis sides of the voice coil 22. The elastic conductive piece 24 comprises an elastic conductive body 241 fixed on the frame 1 and far away from the framework 23 to connect one end of the diaphragm 21, a connecting arm 242 extending along the framework 23 towards the containing space 10 and a second bonding pad 243 connected with the connecting arm 242, wherein the lead 220 of the voice coil 22 is far away from the second bonding pad 243 to be fixedly and electrically connected with one side of the diaphragm 21.
Specifically, the connecting arm 242 includes a first connecting arm 2421 bent and extended from the elastic conductive body 241 along the first side wall 2321 toward the bottom wall 231 and located in the accommodating space 10, and a second connecting arm 2422 bent and extended from the first connecting arm 2421 along the bottom wall 231 toward the voice coil 22; the second pads 243 include two pads, which are respectively located at two sides of the second connecting arm 2422 and fixedly connected to the second connecting arm 2422.
The first connecting arm 2421 and the first side wall 2321 are disposed in parallel at an interval, and the second connecting arm 2422 and the second bonding pad 243 are both attached to one side of the bottom wall 231 close to the voice coil 22.
The elastic conductive body 241 comprises a first body 2411 fixed on one side of the frame 1 far away from the vibrating diaphragm 21, a second body 2413 fixed on one end of the first side wall 2321 far away from the vibrating diaphragm 21, and two elastic arms 2412 connecting the first body 2411 and the second body 2413; the connecting arm 242 is formed by bending and extending the second body portion 2413.
Two first pads 2410 are arranged on the side of the first body 2411 away from the diaphragm 21 at the corresponding positions of the corner parts 12; the corner portion 12, the first corner portion 2142a, and the second corner portion 2142b are fixedly connected to the first body portion 2411, and the corner portion 12 is located in a central region above the first pad 2410, so that the corner portion 12 can effectively support the first pad 2410, the height and shape of the pressed first pad 2410 are not changed, and the reliability and acoustic performance of the sound generating device are improved.
The auxiliary diaphragm 25 is attached to the side of the elastic conductive member 24 away from the diaphragm 21.
Magnetic circuit 3 includes yoke 31, fixed set up in main magnet steel 32 on yoke 31, encircle main magnet steel 32 sets up and with main magnet steel 32 interval forms the limit magnet steel 33, the lid of magnetic gap 30 are established and are fixed in first magnetic conduction board 34 and lid on the main magnet steel 32 are established and are fixed in second magnetic conduction board 35 on the limit magnet steel 33, second magnetic conduction board 35 with basin frame 1 is kept away from one side fixed connection of vibrating diaphragm 21, second magnetic conduction board 35 is in the corresponding position of second pad 243 is equipped with dodges portion 350 for when the sound production device is vibrated the sound production, second magnetic conduction board 35 can not with second pad 243 bumps, can not influence both and lead wire 2211's electric connection, has improved the security of generating device.
Compared with the prior art, the sound production device of the present invention, the vibrating diaphragm includes a vibrating portion, a bending portion extending from the vibrating portion and surrounding the vibrating portion, a fixing portion connected to the bending portion, and an extending portion bending and extending from the fixing portion to the magnetic circuit system; the extension part comprises a pair of long shaft parts which are oppositely arranged, a pair of short shaft parts which are oppositely arranged, a first corner part which connects the adjacent long shaft parts and the short shaft parts, and a second corner part which is arranged at the inner side of the first corner part at intervals; the corner portion is sandwiched between the first corner portion and the second corner portion; the elastic conductive piece is fixedly connected with the first corner part, the second corner part and the corner part; because the corner part is positioned in the central area above the first bonding pad, the corner part can effectively support the first bonding pad, so that the height and the shape of the first bonding pad are not changed after being pressed, and the reliability and the acoustic performance of the sound production device are improved.
The utility model provides an above only do the embodiment of the utility model not consequently the restriction the patent scope of the utility model, all utilize the utility model discloses equivalent structure or equivalent flow transform that the content of description and drawing was done, or direct or indirect application is in other relevant technical field, all the same reason is included the utility model discloses an in the patent protection scope.

Claims (9)

1. A sound production device comprises a basin frame, a vibration system and a magnetic circuit system, wherein the vibration system is respectively fixed on the basin frame, the magnetic circuit system drives the vibration system to vibrate and produce sound, the magnetic circuit system is provided with a magnetic gap, the vibration system comprises a vibrating diaphragm fixed on the basin frame, a voice coil inserted in the magnetic gap to drive the vibrating diaphragm to vibrate, and an elastic conductive piece fixed on the basin frame,
the vibrating diaphragm comprises a vibrating part, a folded ring part, a fixed part and an extending part, wherein the folded ring part extends from the vibrating part and surrounds the vibrating part, the fixed part is connected with the folded ring part, and the extending part is bent and extends from the fixed part to the magnetic circuit system; the extension part comprises a pair of long shaft parts which are oppositely arranged, a pair of short shaft parts which are oppositely arranged, and corner parts which connect the adjacent long shaft parts and the short shaft parts; the basin frame is connected with the long shaft part, the short shaft part and the corner part;
the corner part comprises a first corner part arranged on the outer side of the basin frame and a second corner part arranged on the inner side of the basin frame; the elastic conductive piece is fixedly connected with the first corner part, the second corner part and the basin frame.
2. The sounder device according to claim 1, wherein the frame comprises a pair of spaced apart long side portions, a pair of spaced apart short side portions, and a corner portion connecting adjacent long and short side portions, the corner portion being sandwiched between the first and second corner portions; the first corner part, the second corner part and the corner part are fixedly connected with the elastic conductive piece.
3. The sound production device as claimed in claim 2, wherein the long shaft portion has a first notch, the short shaft portion has a second notch, each of the long side portions is received in the first notch and fixedly connected to the long shaft portion, and each of the short side portions is received in the second notch and fixedly connected to the short shaft portion.
4. The sounding device according to claim 3, wherein a first land is provided at a position corresponding to the corner portion on a side of the elastic conductive member away from the diaphragm, and the corner portion is connected to a central region of the first land.
5. The sound production device as claimed in claim 1, wherein the diaphragm further comprises a dome, the vibrating portion has a through hole, and the dome is located in the through hole and spaced apart from the vibrating portion.
6. The sounding device according to claim 5, wherein the vibrating system further comprises a skeleton fixed to the diaphragm, the skeleton comprising a bottom wall fixed to the vibrating portion and a side wall extending from the bottom wall toward the magnetic circuit, the bottom wall connecting the vibrating portion and the dome; one end of the side wall, which is far away from the vibrating diaphragm, is fixedly connected with the voice coil and the elastic conductive piece.
7. The sounder device according to claim 6, wherein the bottom wall has a ring shape, and the side walls include a first side wall extending from an outer periphery of the bottom wall in a direction of the magnetic circuit system and a second side wall extending from an inner periphery of the bottom wall in a direction of the magnetic circuit system; the first side wall is connected with the elastic conductive piece, the second side wall is connected with the voice coil, the first side wall is opposite to the voice coil at intervals, and the bottom wall, the first side wall and the voice coil jointly enclose an accommodating space.
8. The sounding device according to claim 7, wherein the elastic conductive member includes an elastic conductive body connected to the frame and the end of the frame away from the diaphragm, a connecting arm extending from the elastic conductive body along the frame to the receiving space, and a second bonding pad connected to the connecting arm, and the second bonding pad is fixedly connected to a side of the bottom wall away from the diaphragm.
9. The sounding device according to claim 8, wherein the connecting arm comprises a first bending portion extending from the elastic conductive body to the bottom wall, and a second bending portion extending from the first bending portion to the voice coil; the second bonding pad comprises two second bending parts which are respectively arranged on two sides of the second bending part and connected with the second bending part, the first bending part and the first side wall are arranged in parallel at intervals, and the second bending part and the second bonding pad are connected with one side, close to the voice coil, of the bottom wall.
CN202022847190.4U 2020-11-30 2020-11-30 Sound production device Active CN213938307U (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202022847190.4U CN213938307U (en) 2020-11-30 2020-11-30 Sound production device
PCT/CN2020/140081 WO2022110461A1 (en) 2020-11-30 2020-12-28 Sound production device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202022847190.4U CN213938307U (en) 2020-11-30 2020-11-30 Sound production device

Publications (1)

Publication Number Publication Date
CN213938307U true CN213938307U (en) 2021-08-10

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WO (1) WO2022110461A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN218416661U (en) * 2022-08-30 2023-01-31 瑞声光电科技(常州)有限公司 Sound production device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN206865734U (en) * 2017-05-18 2018-01-09 江西联创宏声电子股份有限公司 Speaker vibration system
CN209526874U (en) * 2018-12-30 2019-10-22 瑞声科技(新加坡)有限公司 Loudspeaker
CN209390352U (en) * 2018-12-30 2019-09-13 瑞声科技(新加坡)有限公司 Microphone device
CN210093496U (en) * 2019-06-26 2020-02-18 瑞声科技(新加坡)有限公司 Sound production device
CN211531292U (en) * 2019-12-27 2020-09-18 瑞声科技(新加坡)有限公司 Sound production device
CN211744725U (en) * 2020-08-12 2020-10-23 歌尔股份有限公司 Sound production device

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