CN211531292U - Sound production device - Google Patents

Sound production device Download PDF

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Publication number
CN211531292U
CN211531292U CN201922447380.4U CN201922447380U CN211531292U CN 211531292 U CN211531292 U CN 211531292U CN 201922447380 U CN201922447380 U CN 201922447380U CN 211531292 U CN211531292 U CN 211531292U
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China
Prior art keywords
voice coil
diaphragm
magnetic
wall
elastic conductive
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Active
Application number
CN201922447380.4U
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Chinese (zh)
Inventor
宋威
张帆
金鑫
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AAC Technologies Pte Ltd
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AAC Technologies Pte Ltd
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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 is respectively fixed on the basin frame, the magnetic circuit system is provided with a magnetic gap, the vibration system comprises a vibrating diaphragm, a voice coil which is inserted into the magnetic gap to drive the vibrating diaphragm to vibrate, a framework connected with the vibrating diaphragm and an elastic conductive piece connected with one side of the framework far away from the vibrating diaphragm; the frame and the voice coil enclose an accommodating space, the elastic conductive piece comprises an elastic conductive piece body connected with one end of the frame far away from the vibrating diaphragm, a connecting wall bent and extended from the elastic conductive piece body along the frame to the accommodating space, and a lead of the voice coil is fixedly and electrically connected with the connecting wall. Compared with the prior art, the utility model discloses a sounding device space utilization is high, and the performance is better.

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 occupies the space of the magnetic circuit system, so that the magnetic steel has a smaller space and poorer performance.
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 space utilization is high, and the magnetic circuit is bulky, the sound production device that the performance is better.
In order to achieve the above object, the present invention provides a sound generating device, which comprises a basin frame, a vibration system respectively fixed on the basin frame, and a magnetic circuit system for driving the vibration system to generate sound, wherein the magnetic circuit system has a magnetic gap, the vibration system comprises a vibrating diaphragm fixed on the basin frame, a voice coil inserted in the magnetic gap for driving the vibrating diaphragm to vibrate, a framework connected with the vibrating diaphragm, and an elastic conductive member fixed on the basin frame and connected with one side of the framework away from the vibrating diaphragm,
the framework and the voice coil form an accommodating space together, the elastic conductive piece comprises an elastic conductive piece body which is fixed on the basin frame and is connected with one end of the vibrating diaphragm, and a connecting wall which is bent and extended from the framework to the accommodating space, wherein the elastic conductive piece body is arranged along the framework, and a lead of the voice coil is fixedly and electrically connected with the second connecting wall.
Preferably, the framework comprises a bottom wall fixed on the diaphragm and a side wall bent and extended from the bottom wall to the magnetic circuit system, and one end of the side wall far away from the diaphragm is fixedly connected with the elastic conductive piece body.
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 toward the magnetic circuit system, and a second side wall extending from the inner periphery of the bottom wall in a bending manner toward the magnetic circuit system; the first side wall is connected with the elastic conductive piece body, 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 connection wall includes a first connection wall bent and extended from the elastic conductive member body along the first side wall toward the bottom wall and located in the accommodating space, and a second connection wall bent and extended from the first connection wall toward the voice coil, and a lead of the voice coil is fixedly electrically connected to the second connection wall.
Preferably, the second connecting wall is attached to a side of the bottom wall close to the voice coil.
Preferably, the voice coil is racetrack-shaped, first lateral wall include two and interval set up in the relative both sides of minor axis of voice coil, the second lateral wall is cyclic annular, the second lateral wall with the voice coil is close to the one end of vibrating diaphragm is connected.
Preferably, the number of the elastic conductive members is two, and the two elastic conductive members are respectively arranged on two short shaft sides of the voice coil.
Preferably, the elastic conductive piece body comprises a first fixing part fixed on one side of the basin frame far away from the vibrating diaphragm, a second fixing part fixed on one end of the first side wall far away from the vibrating diaphragm, and an elastic arm connecting the first fixing part and the second fixing part; the connecting wall is formed by bending and extending the second fixing part.
Preferably, the vibration system further comprises an auxiliary diaphragm attached to one side of the elastic conductive piece, which is far away from the diaphragm.
Preferably, the magnetic circuit system includes a magnetic yoke, a main magnetic steel fixedly arranged on the magnetic yoke, an edge magnetic steel surrounding the main magnetic steel and forming the magnetic gap with the main magnetic steel at an interval, a first magnetic conductive plate fixed on the main magnetic steel and a second magnetic conductive plate fixed on the edge magnetic steel, the second magnetic conductive plate being fixedly connected with one side of the basin frame far away from the vibrating diaphragm.
Preferably, the vibrating diaphragm comprises a vibrating part with a through hole, a ring folding part extending from the periphery of the vibrating part and surrounding the vibrating part, a fixing part bending and extending from one side of the ring folding part far away from the vibrating part and fixed on the basin stand, and a ball top; the vibrating portion surrounds the top dome and is arranged at intervals, and the bottom wall is located between the top dome and the vibrating portion and connects the vibrating portion and the top dome into an integral structure.
Preferably, the first connecting wall and the first side wall are arranged in parallel at a spacing.
Compared with the prior art, the sound production device of the utility model comprises an elastic conductive piece body fixed on the basin frame and connected with the framework at one end far away from the vibrating diaphragm, and a connecting wall bent and extended from the elastic conductive piece body along the bottom wall framework into the accommodating space, wherein the lead of the voice coil is fixedly and electrically connected with the connecting wall; the connecting wall is arranged along the inner side of the framework, so that the occupied space of the elastic conductive piece is reduced to increase the space of a magnetic circuit system, and the space utilization rate is high; the volume of the magnetic circuit system is increased, and the performance of the sounding device is better.
[ 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 three-dimensional structure of the sound device of the present invention
FIG. 2 is an exploded view of the sound device according to the present invention;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 1;
fig. 4 is an enlarged schematic view of B in fig. 3 according to the present invention;
fig. 5 is a schematic view of the partial assembly 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. 1-4, the present invention provides a sound-generating device 100, the sound-generating device 100 includes a basin frame 1, a vibration system 2 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 2 includes a vibrating diaphragm 21 fixed to the basin frame 1, a voice coil 22 inserted into the magnetic gap 30 to drive the vibrating diaphragm 21 to vibrate, a framework 23 connected to the vibrating diaphragm 21, an elastic conductive member 24 fixed to the basin frame 1 and connected to one side of the vibrating diaphragm 21 far away from the framework 23, and an auxiliary vibrating diaphragm 25, wherein the framework 23 and the voice coil 22 together enclose the accommodating space 10.
The vibrating diaphragm 21 comprises a vibrating part 211 with a through hole 2110, a ring-folded part 212 extending from the periphery of the vibrating part 211 and surrounding the vibrating part 211, a fixing part 213 bent and extending from one side of the ring-folded part 212 far away from the vibrating part 211 and fixed on the frame 1, and a ball top 214; the vibration parts 211 surround the ball top 214 and are spaced apart from each other.
The voice coil 22 is inserted into the magnetic gap 30 and has a racetrack shape.
The frame 23 includes a ring-shaped bottom wall 231 fixed to the diaphragm 21, and a side wall 232 bent and extended from the bottom wall 231 toward 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 disposed at an interval on two opposite sides of the short axis of the voice coil 22, the second side wall 2322 is annular and is connected to the voice coil 22, and the second side wall 2322 is connected to one end of the voice coil 22 close to the diaphragm 21.
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 includes an elastic conductive piece body 241 fixed to the frame 1 and connected to the end of the skeleton 23 away from the diaphragm 21, and a connecting wall 242 bent and extended from the elastic conductive piece body 241 along the skeleton 23 toward the inside of the accommodating space 10, and a lead of the voice coil 22 is fixedly and electrically connected to the connecting wall 242.
Specifically, the connection wall 242 includes a first connection wall 2421 bent and extended from the elastic conductive member 241 along the first side wall 2321 toward the bottom wall 231 and located in the accommodating space 10, and a second connection wall 2422 bent and extended from the first connection wall 2421 toward the voice coil 22, and a lead of the voice coil 22 is electrically connected to the second connection wall 2422.
The first connecting wall 2421 is disposed parallel to the first side wall 2321 at a distance, and the second connecting wall 2422 is attached to the side of the bottom wall 231 close to the voice coil 22.
The elastic conductive member body 241 comprises a first fixing portion 2411 fixed on one side of the basin frame 1 far away from the vibrating diaphragm 21, a second fixing portion 2413 fixed on one end of the first side wall 2321 far away from the vibrating diaphragm 21, and an elastic arm 2412 connecting the first fixing portion 2411 and the second fixing portion 2413; the connecting wall 242 is formed by bending and extending the second fixing portion 2413.
The auxiliary diaphragm 25 is attached to the side of the elastic conductive member 24 away from the diaphragm 21.
The magnetic circuit system 3 includes a magnetic yoke 31, a main magnetic steel 32 fixedly disposed on the magnetic yoke 31, an edge magnetic steel 33 disposed around the main magnetic steel 32 and forming the magnetic gap 30 with the main magnetic steel 32 at an interval, a first magnetic conductive plate 34 fixed on the main magnetic steel 32 and a second magnetic conductive plate 35 fixed on the edge magnetic steel 33, wherein the second magnetic conductive plate 35 is fixedly connected with one side of the basin stand 1 far away from the diaphragm 21.
As shown in fig. 4 and 5, since the first connecting wall 2421 is disposed to be bent and extended along the first side wall 2321 and the second connecting wall 2422 is disposed to be bent and extended along the bottom wall 231, the space occupied by the connecting wall 242 is small, the space of the magnetic circuit system 3 is increased, and the space utilization rate is high.
Compared with the prior art, the sound production device of the utility model comprises an elastic conductive piece body fixed on the basin frame and connected with the framework at one end far away from the vibrating diaphragm, and a connecting wall bent and extended from the elastic conductive piece body along the bottom wall framework into the accommodating space, wherein the lead of the voice coil is fixedly and electrically connected with the connecting wall; the connecting wall is arranged along the inner side of the framework, so that the occupied space of the elastic conductive piece is reduced to increase the space of a magnetic circuit system, and the space utilization rate is high; the volume of the magnetic circuit system is increased, and the performance of the sounding device is better.
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 (12)

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, a framework connected with the vibrating diaphragm and an elastic conductive piece fixed on the basin frame and connected with one side of the framework far away from the vibrating diaphragm,
the framework and the voice coil form an accommodating space together, the elastic conductive piece comprises an elastic conductive piece body which is fixed on the basin frame and is connected with one end of the vibrating diaphragm, and a connecting wall which is bent and extended from the framework to the accommodating space, wherein the elastic conductive piece body is arranged along the framework, and a lead of the voice coil is fixedly and electrically connected with the connecting wall.
2. The sounding device according to claim 1, wherein the skeleton includes a bottom wall fixed to the diaphragm and a side wall extending from the bottom wall toward the magnetic circuit, and an end of the side wall away from the diaphragm is fixedly connected to the elastic conductive member.
3. The sounder device according to claim 2, 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 body, 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.
4. The sounding device according to claim 3, wherein the connecting wall includes a first connecting wall extending from the elastic conductive member along the first side wall toward the bottom wall and located in the receiving space, and a second connecting wall extending from the first connecting wall toward the voice coil, and a lead of the voice coil is electrically connected to the second connecting wall.
5. The sound device as claimed in claim 4, wherein the second connecting wall is attached to a side of the bottom wall adjacent to the voice coil.
6. The sound production device as claimed in claim 4, wherein the voice coil is racetrack shaped, the first sidewall comprises two spaced apart short axis opposite sides of the voice coil, and the second sidewall is annular and is connected to an end of the voice coil adjacent to the diaphragm.
7. The sounding device as claimed in claim 3, wherein the resilient conductive member comprises two resilient conductive members respectively disposed at two short sides of the voice coil.
8. The sound production device as claimed in claim 7, wherein the resilient conductive member body comprises a first fixing portion fixed to a side of the frame away from the diaphragm, a second fixing portion fixed to an end of the first sidewall away from the diaphragm, and a resilient arm connecting the first fixing portion and the second fixing portion; the connecting wall is formed by bending and extending the second fixing part.
9. The sounder device according to claim 8, wherein the vibration system further comprises an auxiliary diaphragm attached to a side of the resilient conductive member remote from the diaphragm.
10. The sound production device as claimed in claim 1, wherein the magnetic circuit system comprises a magnetic yoke, a main magnetic steel fixedly disposed on the magnetic yoke, a side magnetic steel disposed around the main magnetic steel and spaced from the main magnetic steel to form the magnetic gap, a first magnetic conductive plate disposed on the main magnetic steel in a covering manner, and a second magnetic conductive plate disposed on the side magnetic steel in a covering manner, the second magnetic conductive plate being fixedly connected to a side of the frame away from the diaphragm.
11. The sounding device according to claim 2, wherein the diaphragm comprises a vibrating portion having a through hole, a bending portion extending from a periphery of the vibrating portion and surrounding the vibrating portion, a fixing portion extending from a side of the bending portion away from the vibrating portion and fixed to the frame, and a dome; the vibrating portion surrounds the top dome and is arranged at intervals, and the bottom wall is located between the top dome and the vibrating portion and connects the vibrating portion and the top dome into an integral structure.
12. The sounder device according to claim 4, wherein the first connecting wall is spaced apart from and parallel to the first side wall.
CN201922447380.4U 2019-12-27 2019-12-27 Sound production device Active CN211531292U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201922447380.4U CN211531292U (en) 2019-12-27 2019-12-27 Sound production device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201922447380.4U CN211531292U (en) 2019-12-27 2019-12-27 Sound production device

Publications (1)

Publication Number Publication Date
CN211531292U true CN211531292U (en) 2020-09-18

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112261541A (en) * 2020-09-23 2021-01-22 瑞声新能源发展(常州)有限公司科教城分公司 Sound production device
CN112468908A (en) * 2020-12-18 2021-03-09 瑞声新能源发展(常州)有限公司科教城分公司 Loudspeaker enclosure and method of assembling the same
WO2022062106A1 (en) * 2020-09-28 2022-03-31 瑞声声学科技(深圳)有限公司 Sound generating device
WO2022068013A1 (en) * 2020-09-29 2022-04-07 瑞声声学科技(深圳)有限公司 Sound generation device
WO2022067926A1 (en) * 2020-09-29 2022-04-07 瑞声声学科技(深圳)有限公司 Loudspeaker and electronic terminal
US20220174419A1 (en) * 2020-11-30 2022-06-02 Aac Microtech (Changzhou) Co., Ltd. Speaker device
WO2022110467A1 (en) * 2020-11-30 2022-06-02 瑞声声学科技(深圳)有限公司 Sound production device
WO2022110461A1 (en) * 2020-11-30 2022-06-02 瑞声声学科技(深圳)有限公司 Sound production device
WO2022110372A1 (en) * 2020-11-30 2022-06-02 瑞声声学科技(深圳)有限公司 Sound production device
WO2022110368A1 (en) * 2020-11-30 2022-06-02 瑞声声学科技(深圳)有限公司 Sound production device
WO2022126776A1 (en) * 2020-12-18 2022-06-23 瑞声声学科技(深圳)有限公司 Sound production device
US11570534B2 (en) * 2020-11-30 2023-01-31 Aac Microtech (Changzhou) Co., Ltd. Speaker device

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112261541B (en) * 2020-09-23 2022-03-29 瑞声新能源发展(常州)有限公司科教城分公司 Sound production device
CN112261541A (en) * 2020-09-23 2021-01-22 瑞声新能源发展(常州)有限公司科教城分公司 Sound production device
WO2022062106A1 (en) * 2020-09-28 2022-03-31 瑞声声学科技(深圳)有限公司 Sound generating device
WO2022067926A1 (en) * 2020-09-29 2022-04-07 瑞声声学科技(深圳)有限公司 Loudspeaker and electronic terminal
WO2022068013A1 (en) * 2020-09-29 2022-04-07 瑞声声学科技(深圳)有限公司 Sound generation device
US20220174419A1 (en) * 2020-11-30 2022-06-02 Aac Microtech (Changzhou) Co., Ltd. Speaker device
WO2022110467A1 (en) * 2020-11-30 2022-06-02 瑞声声学科技(深圳)有限公司 Sound production device
WO2022110461A1 (en) * 2020-11-30 2022-06-02 瑞声声学科技(深圳)有限公司 Sound production device
WO2022110372A1 (en) * 2020-11-30 2022-06-02 瑞声声学科技(深圳)有限公司 Sound production device
WO2022110368A1 (en) * 2020-11-30 2022-06-02 瑞声声学科技(深圳)有限公司 Sound production device
US11570534B2 (en) * 2020-11-30 2023-01-31 Aac Microtech (Changzhou) Co., Ltd. Speaker device
CN112468908B (en) * 2020-12-18 2022-03-01 瑞声新能源发展(常州)有限公司科教城分公司 Loudspeaker enclosure and method of assembling the same
CN112468908A (en) * 2020-12-18 2021-03-09 瑞声新能源发展(常州)有限公司科教城分公司 Loudspeaker enclosure and method of assembling the same
WO2022126782A1 (en) * 2020-12-18 2022-06-23 瑞声声学科技(深圳)有限公司 Loudspeaker box and assembly method therefor
WO2022126776A1 (en) * 2020-12-18 2022-06-23 瑞声声学科技(深圳)有限公司 Sound production device

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