CN214708052U - Sounding device - Google Patents
Sounding device Download PDFInfo
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- CN214708052U CN214708052U CN202023206741.5U CN202023206741U CN214708052U CN 214708052 U CN214708052 U CN 214708052U CN 202023206741 U CN202023206741 U CN 202023206741U CN 214708052 U CN214708052 U CN 214708052U
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- fixing
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 96
- 239000010959 steel Substances 0.000 claims abstract description 96
- 238000007789 sealing Methods 0.000 claims abstract description 11
- 239000012528 membrane Substances 0.000 claims abstract 4
- 230000002093 peripheral effect Effects 0.000 claims description 14
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 239000003292 glue Substances 0.000 claims description 4
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 13
- 238000004519 manufacturing process Methods 0.000 description 11
- 239000007787 solid Substances 0.000 description 4
- 238000004026 adhesive bonding Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000010030 laminating Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
- 230000001755 vocal effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
本实用新型提供了一种发声器件，其包括盆架、振动系统以及磁路系统；振动系统包括振膜和音圈；振膜包括呈环状的第一折环、第二折环以及振动部，磁路系统包括磁轭、主磁钢单元以及副磁钢；振动系统还包括固定环；主磁钢单元包括依次叠设固定于磁轭的第一主磁钢、极芯和第二主磁钢，第二主磁钢包括叠设固定于极芯的主磁钢本体以及由主磁钢本体远离磁轭的一侧凸出延伸的主磁钢延伸部；第二折环绕主磁钢延伸部设置，固定环盖设固定于主磁钢延伸部；磁路系统还包括设置于主磁钢延伸部的导磁片，导磁片完全覆盖于主磁钢延伸部上，并贴合固定于固定环以实现密封。本实用新型的发声器件密封良好，防水性能强，可靠性更好，声学性能更优。
The utility model provides a sound-generating device, which comprises a basin frame, a vibration system and a magnetic circuit system; the vibration system comprises a vibrating membrane and a voice coil; the vibrating membrane comprises a ring-shaped first folding ring, a second folding ring and a vibration part, The magnetic circuit system includes a magnetic yoke, a main magnetic steel unit and a secondary magnetic steel; the vibration system further includes a fixing ring; the main magnetic steel unit includes a first main magnetic steel, a pole core and a second main magnetic steel that are stacked and fixed on the magnetic yoke in sequence , the second main magnetic steel includes a main magnetic steel body that is stacked and fixed on the pole core and a main magnetic steel extension part that protrudes and extends from the side of the main magnetic steel body away from the yoke; the second fold is arranged around the main magnetic steel extension part , the fixing ring is covered and fixed on the extension of the main magnetic steel; the magnetic circuit system also includes a magnetic conductive sheet arranged on the extension of the main magnetic steel, the magnetic conductive sheet completely covers the extension of the main magnetic steel, and is fitted and fixed to the fixing ring to achieve sealing. The sound-emitting device of the utility model has good sealing, strong waterproof performance, better reliability and better acoustic performance.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to an electroacoustic conversion field especially relates to a sounding device.
[ background of the invention ]
And the sound generating device is used for converting the audio signal into sound to be played in the mobile terminal.
The sound production device in the related art comprises a basin frame, a vibration system fixed on the basin frame and a magnetic circuit system with a magnetic gap, wherein the magnetic circuit system drives the vibration system to vibrate and produce sound; the resilient support assembly connects the skeleton to the basin frame to provide lateral support against rocking.
However, in the sound production device in the related art, the fixing ring and the middle vibrating diaphragm are sealed in the rear cavity of the single body by gluing, and the state of glue after gluing is not easy to monitor, so that the risk of water failure caused by air leakage exists; during the assembly, the glue joint roughness between well vibrating diaphragm and the solid fixed ring is relatively poor, leads to the leakproofness poor for well vibrating diaphragm is relatively poor with solid fixed ring joint strength, has influenced the reliability and the acoustic performance of vocal device.
Therefore, there is a need to provide a new sound generation device to solve the above technical problems.
[ Utility model ] content
An object of the utility model is to provide a sound production device that waterproof nature is good, good reliability, acoustic performance are excellent.
In order to achieve the above object, the present invention provides a sound-producing device, which comprises a basin frame, a vibration system supported on the basin frame, and a magnetic circuit system for driving the vibration system to vibrate and produce sound;
the vibration system comprises an annular vibrating diaphragm and a voice coil for driving the vibrating diaphragm to vibrate; the vibrating diaphragm comprises a first annular folding ring, a second annular folding ring and an annular vibrating part, the first folding ring is arranged around the second folding ring and is spaced from the first folding ring, the outer peripheral side of the vibrating part is fixed on one side, close to the second folding ring, of the first folding ring, and the inner peripheral side of the vibrating part is fixed on one side, close to the first folding ring, of the second folding ring;
the magnetic circuit system comprises a magnetic yoke fixed on the basin frame, main magnetic steel units respectively fixed on the magnetic yoke, and auxiliary magnetic steel surrounding the main magnetic steel units; the auxiliary magnetic steel and the main magnetic steel unit form a magnetic gap at intervals, and the voice coil is inserted into the magnetic gap; the outer periphery of the first folding ring is fixed on the basin frame, and the inner periphery of the second folding ring is fixed at one end, close to the magnet yoke, of the fixing ring;
the vibration system also comprises a fixing ring which is covered and fixed on one side of the main magnetic steel unit, which is far away from the magnetic yoke, and the inner peripheral side of the second folded ring is fixed on one end, which is close to the magnetic yoke, of the fixing ring; the main magnetic steel unit comprises a first main magnetic steel, a pole core and a second main magnetic steel which are sequentially overlapped and fixed on the magnetic yoke, and the second main magnetic steel comprises a main magnetic steel body which is overlapped and fixed on the pole core and a main magnetic steel extension part which is convexly extended from one side of the main magnetic steel body, which is far away from the magnetic yoke; the second fold is arranged around the main magnetic steel extension part, and the fixed ring is covered and fixed on the main magnetic steel extension part;
the magnetic circuit system further comprises magnetic conductive sheets arranged on the main magnetic steel extension parts, and the magnetic conductive sheets cover the main magnetic steel extension parts and are attached and fixed to the fixing rings to realize sealing.
Furthermore, the fixing ring and the magnetic conductive sheet are fixedly connected through laser welding.
Furthermore, the magnetic conductive sheet and the main magnetic steel extension part are bonded and fixed through glue.
Furthermore, the second folding ring comprises a containing groove formed by recessing one end of the second folding ring close to the fixed ring; the fixing ring comprises an annular fixing ring body, a fixing ring reinforcing wall and a fixing ring fixing part, wherein the annular fixing ring body is sleeved on the main magnetic steel extension part, the fixing ring reinforcing wall is formed by enabling the fixing ring body to be close to one end of the magnetic yoke and bent and extended towards the accommodating groove, the fixing ring fixing part is formed by enabling the fixing ring body to be far away from one end of the magnetic yoke and extended towards the inner side of the fixing ring body, and the fixing ring fixing part is fixed on the magnetic conduction piece.
Furthermore, the geometric center of the fixed part of the fixed ring is recessed near the main magnetic steel extension part to form a through hole, the main magnetic steel extension part is recessed towards the geometric center to form a groove, and the groove is opposite to the through hole.
Furthermore, the vibration system further comprises a framework, wherein the framework comprises an annular framework body and a first framework fixing part which is bent and extended from the inner peripheral side of the framework body to the direction of the voice coil; the framework body is positioned between the first folding ring and the second folding ring, is respectively connected with the inner peripheral side of the first folding ring and the outer peripheral side of the second folding ring, and is used as the vibration part; the first framework fixing part is fixed at one end, far away from the magnetic yoke, of the voice coil, and the second folded ring is fixed at one side, close to the framework body, of the first framework fixing part.
Furthermore, the vibrating diaphragm further comprises an annular dome, wherein the dome is arranged between the first folding ring and the second folding ring and is attached and fixed to one side, away from the voice coil, of the framework body.
Furthermore, the skeleton still includes by the periphery side direction of skeleton body is kept away from the second skeleton fixed part that the direction of vibrating diaphragm extends, vibration system still includes the elastic support subassembly, the elastic support subassembly is fixed in the basin frame is kept away from the one end of vibrating diaphragm, second skeleton fixed part connect in the basin frame.
Furthermore, the voice coil is of a rectangular structure, the number of the elastic supporting components is two, and the two elastic supporting components are respectively located on two opposite sides of the voice coil.
Furthermore, the elastic support component comprises an elastic part fixed on the basin frame and an auxiliary vibrating diaphragm attached to one side, far away from the vibrating diaphragm, of the elastic part, and the second framework fixing part is connected to the elastic part.
Compared with the prior art, the utility model discloses an among the sound production device, roll over the ring through the second with the vibrating diaphragm and fix with solid fixed ring, the magnetic conductive plate that sets up on main magnet steel unit is used for realizing the magnetic conduction effect, through inciting somebody to action the magnetic conductive plate cover completely in on the main magnet steel extension of main magnet steel unit, and the laminating is fixed in gu fixed ring is sealed in order to realize, has improved the sealed effect and the waterproof performance of sound production device to increased vibration system's vibration effect, further improved the reliability and the acoustic performance of sound production device.
[ 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 an exploded view of the sound device of the present invention.
Fig. 2 is a schematic view of a three-dimensional structure of the sound generating device of the present invention.
Fig. 3 is a sectional view taken along line a-a in fig. 2.
Fig. 4 is a sectional view taken along line B-B in fig. 2.
Fig. 5 is an enlarged view of a portion C shown in fig. 4.
100, a sounding device; 1. a basin stand; 2. a vibration system; 21. a framework; 211. a skeleton body; 212. a first frame fixing part; 213. a second frame fixing part; 22. vibrating diaphragm; 221. a first fold ring; 222. a second fold ring; 2221. an accommodating groove; 223. a vibrating portion 23, a dome; 24. a voice coil; 25. an elastic support member; 251, an elastic member; 252. an auxiliary diaphragm; 26. a fixing ring; 261. A stationary ring body 262, a stationary ring reinforcement wall; 263. a fixed ring fixing part; 3. a magnetic circuit system; 31. a magnetic yoke; 32. a secondary magnetic steel; 33. a main magnetic steel unit; 331. a first main magnetic steel; 332. a pole piece; 333. a second main magnetic steel; 3331. a main magnetic steel body; 3332. a main magnetic steel extension part; 34. a magnetic gap; 35. a secondary pole core; 36. a magnetic conductive sheet; 37. a through hole; 38. and (4) a groove.
[ 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. 1-5, the present invention provides a sound generating device 100, which includes a frame 1, a vibration system 2, and a magnetic circuit system 3 with a magnetic gap. The vibration system 2 and the magnetic circuit system 3 are respectively supported on the basin frame 1, and the magnetic circuit system 3 drives the vibration system 2 to vibrate and sound.
The vibration system 2 comprises a ring-shaped diaphragm 22 and a voice coil 24 for driving the diaphragm 22 to vibrate; the diaphragm 22 includes a first annular edge 221, a second annular edge 222, and an annular vibration portion 223, the first edge 221 is disposed around the second edge 222 and spaced from the first edge 221, the outer periphery of the vibration portion 223 is fixed to the side of the first edge 221 close to the second edge 222, and the inner periphery of the vibration portion 223 is fixed to the side of the second edge 222 close to the first edge 221. The vibrating portion 223 is not limited thereto, and may be a ring structure directly connected between the first and second folding rings 221 and 222, or a portion of the frame 21 may be attached between the first and second folding rings 221 and 222 to serve as the vibrating portion 223.
The magnetic circuit system 3 comprises a magnetic yoke 31 fixed on the basin stand 1, a main magnetic steel unit 33 respectively fixed on the magnetic yoke 31, and an auxiliary magnetic steel 32 surrounding the main magnetic steel unit 33; the secondary magnetic steel 32 and the main magnetic steel unit 33 form a magnetic gap 34 at intervals, and the voice coil 24 is inserted into the magnetic gap 34; the outer periphery of the first folding ring 221 is fixed to the frame 1.
The magnetic circuit system 3 further includes a secondary pole core 35 covering the secondary magnetic steel 32, and the magnetic gap 34 is formed between the secondary pole core 35 and the primary magnetic steel unit 33.
The vibration system 2 further includes a fixing ring 26 covering and fixed on one side of the main magnet steel unit 33 away from the magnetic yoke 31, and the inner peripheral side of the second folded ring 222 is fixed on one end of the fixing ring 26 close to the magnetic yoke 31; the main magnetic steel unit 33 comprises a first main magnetic steel 331, a pole core 332 and a second main magnetic steel 333 which are sequentially fixed on the magnetic yoke 31 in an overlapping manner, wherein the second main magnetic steel 333 comprises a main magnetic steel body 3331 fixed on the pole core 332 in an overlapping manner and a main magnetic steel extension part 3332 which is extended from one side of the main magnetic steel body 3331 far away from the magnetic yoke 31 in a protruding manner; the second folded ring 222 is disposed around the main magnetic steel extending portion 3332, and the fixing ring 26 is fixed to the main magnetic steel extending portion 3332 in a covering manner.
The magnetic circuit system 3 further includes a magnetic conductive sheet 36 disposed on the main magnetic steel extension 3332, wherein the magnetic conductive sheet 36 completely covers the main magnetic steel extension 3332, and is attached and fixed to the side wall of the fixing ring 26 close to the main magnetic steel extension 3332 to achieve sealing. By fixing the second folded ring 222 of the vibrating diaphragm 22 and the fixing ring 26, the magnetic conductive sheet 36 disposed on the main magnetic steel unit 33 is used to achieve a magnetic conductive effect, and the magnetic conductive sheet 36 completely covers the main magnetic steel extension 3332 of the main magnetic steel unit 33 and is attached to and fixed to the fixing ring 26 to achieve sealing, so that the sealing effect and the waterproof performance of the sound generating device are improved, the vibration effect of the vibration system 2 is increased, and the reliability and the acoustic performance of the sound generating device are further improved.
Specifically, the fixing ring 26 and the magnetic conductive sheet 36 are fixedly connected by laser welding. The fixing between the fixing ring 26 and the magnetic conductive sheet 36 is good, and the sealing performance is strong.
Specifically, the magnetic conductive piece 36 and the main magnetic steel extension 3332 are fixed by gluing. Therefore, the sealing effect between the magnetic conductive sheet 36 and the main magnetic steel extension 3332 is good, and the integral waterproof performance of the sound production device is improved.
Specifically, the second folding ring 222 includes a receiving groove 2221 formed by recessing an end of the second folding ring 222 close to the fixing ring 26; the fixing ring 26 includes a ring-shaped fixing ring body 261 sleeved on the main magnet steel extension 3332, a fixing ring reinforcing wall 262 bent and extended from one end of the magnet yoke 31 toward the accommodating groove 2221, and a fixing ring fixing portion 263 extended from one end of the magnet yoke 31 toward the inner side of the fixing ring body 261 and fixed to the magnetic conductive sheet 36 by the fixing ring body 261, and the fixing ring fixing portion 263 is fixed to the magnetic conductive sheet 36. The fixing ring reinforcing wall 262 is matched with the receiving groove 2221 of the second tab 222 to achieve the effect of mutual spacing and fixing. The magnetic conductive plate 36 is fixed in the fixing ring fixing portion 263, so that the magnetic conductive plate 36 and the fixing ring fixing portion 263 are well fixed, and the magnetic conductive plate 36 and the fixing ring 26 are sealed.
Specifically, the geometric center of the fixing ring 263 is recessed near the main magnet extension 3332 to form a through hole 37, the main magnet extension 3332 is recessed toward the geometric center to form a groove 38, and the groove 38 is disposed opposite to the through hole 37. Through the through-hole 37 on the fixed ring fixed part 263 and the groove 38 on the main magnetic steel extension part 3332 are arranged correspondingly, the magnetic conductive sheet 36 separates the through-hole 37 and the groove 38, and the sealing effect can be realized and the effective magnetic conductive effect can be realized. The magnetic force emitted from the main magnetic steel body 3331 is conveniently emitted from the through hole 37,
specifically, the second fold 222 is integrally formed with the fixing ring 26. This makes the second flange 222 and the fixing ring 26 have good sealing performance, thereby improving the fixing performance of the diaphragm 22 and the fixing ring 26, and further improving the reliability and acoustic performance of the sound generating device. Of course, the second flange 222 is integrally formed with the fixing ring 26. The production efficiency of the diaphragm 22 and the fixing ring 26 can also be improved.
Further, the fixing ring 26 is a metal ring, and the hardness of the metal ring is higher than that of the diaphragm 22, so as to fix the diaphragm 22.
Further, the second tab 222 and the fixing ring 26 may be made of metal, so as to enhance the fixing strength of the second tab 222, and to be magnetically conductive, thereby reducing the exposure of the magnetic field.
Specifically, the vibration system 2 further includes a bobbin 21, and the bobbin 21 includes a ring-shaped bobbin body 211 and a first bobbin fixing portion 212 extending from an inner peripheral side of the bobbin body 211 to the voice coil 24; the frame body 211 is located between the first tab 221 and the second tab 222 and connected to an inner circumferential side of the first tab 221 and an outer circumferential side of the second tab 222, respectively, to serve as the vibrating portion 223; the first bobbin fixing portion 212 is fixed to an end of the voice coil 24 away from the magnetic yoke 31, and the second tab 222 is fixed to a side of the first bobbin fixing portion 212 close to the bobbin body 211.
Specifically, the diaphragm 22 further includes an annular dome 23, and the dome 23 is disposed between the first folding ring 221 and the second folding ring 222, and is attached and fixed to one side of the bobbin body 211 away from the voice coil 24.
Specifically, skeleton 21 still includes by the periphery side direction of skeleton body 211 is kept away from the second skeleton fixed part 213 that the direction of vibrating diaphragm 22 extends, vibration system 2 still includes elastic support subassembly 25, elastic support subassembly 25 is fixed in basin frame 1 is kept away from the one end of vibrating diaphragm 22, second skeleton fixed part 213 connect in second skeleton fixed part 213.
Specifically, the voice coil 24 is in a rectangular structure, and the number of the elastic support assemblies 25 is two, and the two elastic support assemblies 25 are respectively located at two opposite sides of the voice coil 24. This facilitates fixing the voice coil 24, prevents the voice coil 24 from oscillating laterally, and improves reliability.
The elastic support assembly 25 includes an elastic member 251 fixed to the frame 1 and an auxiliary diaphragm 252 attached to a side of the elastic member 251 away from the diaphragm 22, and the second frame fixing portion 213 is connected to the elastic member 251.
Compared with the prior art, this use novel embodiment to roll over the ring through the second with the vibrating diaphragm and fix with solid fixed ring, the magnetic conductive plate that sets up on main magnet steel unit is used for realizing the magnetic conduction effect, through inciting somebody to action the magnetic conductive plate cover completely in on the main magnet steel extension of main magnet steel unit, and the laminating is fixed in gu fixed ring is in order to realize sealedly, has improved the sealed effect and the waterproof performance of sound production device to increased vibration system's vibration effect, further improved the reliability and the acoustic performance of sound production device.
The above embodiments of the present invention are only described, and it should be noted that, for those skilled in the art, modifications can be made without departing from the inventive concept, but these all fall into the protection scope of the present invention.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023206741.5U CN214708052U (en) | 2020-12-25 | 2020-12-25 | Sounding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023206741.5U CN214708052U (en) | 2020-12-25 | 2020-12-25 | Sounding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214708052U true CN214708052U (en) | 2021-11-12 |
Family
ID=78560074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023206741.5U Active CN214708052U (en) | 2020-12-25 | 2020-12-25 | Sounding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214708052U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024130812A1 (en) * | 2022-12-22 | 2024-06-27 | 瑞声光电科技(常州)有限公司 | Sound-emitting device |
-
2020
- 2020-12-25 CN CN202023206741.5U patent/CN214708052U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024130812A1 (en) * | 2022-12-22 | 2024-06-27 | 瑞声光电科技(常州)有限公司 | Sound-emitting device |
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