CN112468939B - Sound production device - Google Patents
Sound production device Download PDFInfo
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- CN112468939B CN112468939B CN202011507347.7A CN202011507347A CN112468939B CN 112468939 B CN112468939 B CN 112468939B CN 202011507347 A CN202011507347 A CN 202011507347A CN 112468939 B CN112468939 B CN 112468939B
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- sub
- magnetic
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- connecting part
- voice coil
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/16—Mounting or tensioning of diaphragms or cones
- H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
- H04R7/22—Clamping rim of diaphragm or cone against seating
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
- H04R7/12—Non-planar diaphragms or cones
- H04R7/127—Non-planar diaphragms or cones dome-shaped
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The invention provides a sound production device, which comprises a basin frame, a vibration system and a magnetic circuit system, wherein the vibration system and the magnetic circuit system are fixedly connected to the basin frame, the vibration system comprises a vibration diaphragm, a framework and a voice coil for driving the vibration diaphragm to vibrate, the vibration diaphragm comprises a ball top and a main sound film which are sequentially stacked, the main sound film comprises a folded ring part, a first fixing part and a second fixing part, the first fixing part is positioned on the inner side of the folded ring part, the second fixing part is positioned on the outer side of the folded ring part, the first fixing part is provided with a first surface facing the ball top and a second surface facing away from the ball top, the ball top comprises a main body part and a connecting part extending out of the main body part, the first surface is completely connected with the connecting part of the ball top, the second fixing part is connected with the basin frame, and the framework comprises a first connecting part, a first sub-connecting part and a second sub-connecting part which are connected with two sides of the first connecting part and are oppositely arranged, the first connecting portion is connected with the second surface. The ball top of the sound production device is maximized, and the sound production effect can be improved.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of electroacoustic conversion, in particular to a sound production device.
[ background of the invention ]
The loudspeaker is a device capable of converting electric energy into sound energy, and is widely applied to terminal electronic devices such as mobile phones, panels and computers.
Therefore, it is necessary to provide a solution to the above problem by increasing the area of the dome.
[ summary of the invention ]
The invention aims to provide a sound generating device, which improves the vibration effect of the sound generating device.
The technical scheme of the invention is as follows: a sound-producing device, which comprises a basin frame, a vibration system and a magnetic circuit system which are fixedly connected with the basin frame, the vibration system comprises a vibration diaphragm, a framework and a voice coil for driving the vibration diaphragm to vibrate, the vibration diaphragm comprises a ball top and a main sound film which are sequentially stacked, the main sound film comprises a folded ring part, a first fixing part positioned on the inner side of the folded ring part and a second fixing part positioned on the outer side of the folded ring part, the first fixing part is provided with a first surface facing the top of the ball and a second surface facing away from the top of the ball, the dome comprises a main body part and a connecting part extending out of the main body part, the first surface is completely connected with the connecting part of the dome, the second fixing part is connected with the basin frame, the framework comprises a first connecting part, a first sub-connecting part and a second sub-connecting part, the first sub-connecting part and the second sub-connecting part are connected to two sides of the first connecting part and are arranged oppositely, and the first connecting part is connected with the second surface.
Optionally, the basin frame sets up the skeleton periphery and with the skeleton interval sets up in order the skeleton with form accommodation space between the basin frame, roll over the ring position in accommodation space, the main part with form step portion between the connecting portion, first fixed part is acceptd in the step portion.
Optionally, the second fixed part have mutually perpendicular and all with third sub-connecting portion and fourth sub-connecting portion that the basin frame is connected, third sub-connecting portion have the orientation the third of ball top setting and dorsad the fourth face of ball top setting, fourth sub-connecting portion are including the fifth and the sixth that set up mutually back to back, the basin frame has the encirclement this somatic part that the skeleton periphery set up, this somatic part has the top surface and deviates from the outer peripheral edges of top surface the direction of top surface is buckled, the top surface with the fourth face is connected, the side with the sixth is connected.
Optionally, the vibration system further includes a first flexible circuit board and a second flexible circuit board, the first flexible circuit board is connected to the first sub-connecting portion, and the second flexible circuit board is connected to the second sub-connecting portion.
Optionally, the vibration system further includes a first auxiliary sound film and a second auxiliary sound film which are arranged at intervals, the first auxiliary sound film is connected with one side of the framework far away from the first flexible circuit board, and the second auxiliary sound film is connected with one side of the framework far away from the second flexible circuit board.
Optionally, the vibration system further includes a gasket, and the main body portion, the gasket, and the voice coil are sequentially stacked.
Optionally, the voice coil and the washer are both rectangular ring structures, and the shape and size of the washer are matched with those of the voice coil.
Optionally, the body portion has a bottom surface disposed opposite to the top surface, the magnetic circuit system includes a magnetic yoke connected to the bottom surface, a main magnetic steel located inside the magnetic yoke, and a plurality of auxiliary magnetic steels spaced around the periphery of the main magnetic steel, a magnetic gap is formed between each of the plurality of auxiliary magnetic steels and the main magnetic steel, and a portion of the voice coil is suspended in the magnetic gap.
Optionally, the magnetic circuit system further includes a pole core stacked on the main magnetic steel, the voice coil has a through hole and a voice coil body surrounding the through hole, and the pole core is accommodated in the through hole and located between the main magnetic steel and the dome.
Optionally, the fixing system further includes a bottom plate, and the bottom plate covers one side of the main magnetic steel and the plurality of auxiliary magnetic steels, which is away from the magnetic yoke, to support the plurality of auxiliary magnetic steels and the main magnetic steel.
The invention has the beneficial effects that: the first surface of the first fixing part is completely connected with the connecting part of the dome, and only part of the first surface of the first fixing part is connected with the connecting part of the dome.
[ description of the drawings ]
FIG. 1 is a front view of a sound generating device provided by the present invention;
FIG. 2 is an exploded view of the sound generator of FIG. 1;
FIG. 3 is a perspective view of the main diaphragm of the sound emitting device of FIG. 2;
FIG. 4 is a perspective view of the dome of the sound generating device of FIG. 2;
FIG. 5 is a cross-sectional view of the sound generator of FIG. 1 taken along the line A-A;
fig. 6 is a perspective view of the frame of the sound generating apparatus shown in fig. 2.
[ detailed description ] embodiments
The invention is further described with reference to the following figures and embodiments.
Referring to fig. 1 and 5, fig. 2 is an exploded view of the sound generating device, and fig. 5 is a sectional view of the sound generating device shown in fig. 1 taken along a direction a-a. The invention provides a sound production device 100, which comprises a fixed system 1, a vibration system 2 and a magnetic circuit system 3, wherein the fixed system 1 can provide support for the vibration system 2 and the magnetic circuit system 3, and the magnetic circuit system 3 can drive the vibration system 2 to vibrate and produce sound.
Referring to fig. 1 to 4, the vibration system 2 includes a diaphragm, a frame 22 and a voice coil 25 for driving the diaphragm to vibrate, the diaphragm includes a dome 21 and a main diaphragm 22 stacked in sequence, the main diaphragm 22 includes a folded ring portion 221, a first fixing portion 223 located inside the folded ring portion 221 and a second fixing portion 224 located outside the folded ring portion, the first fixing portion 223 has a first surface 2231 facing the dome 21 and a second surface 2232 facing away from the dome, the dome 21 includes a main body portion 211 and a connecting portion 212 extending from the main body portion 211, the first surface 2231 is connected to the connecting portion 212 of the dome 21, the second fixing portion 224 is connected to the frame 11, a step portion 213 is formed between the main body portion 211 and the connecting portion 212, and the first fixing portion 223 is accommodated in the step portion 213.
In the related art, only a part of the first surface 2231 is usually connected to the connecting portion 212 of the dome 21, which affects the harmonic energy generation noise and the sound emission effect of the speaker 100.
According to the invention, the first surface 2231 is connected with the connecting part 212 of the dome 21, so that the dome 21 covers the area of the first fixing part 223 to the maximum extent, which is beneficial to improving the higher harmonic energy and further improving the sound production effect of the sound production device 100.
Referring to fig. 2 and 5, the frame 23 includes a first connection portion 231, a first sub-connection portion 232 and a second sub-connection portion 233 connected to two sides of the first connection portion 231 and disposed oppositely, and the first connection portion 231 is connected to the second surface 2232, the frame 11 is disposed at the periphery of the frame 23 and spaced apart from the frame 23, so as to form a receiving space 234 between the frame 23 and the frame 11, and the folded ring portion 221 is located in the receiving space 234.
The first connection portion 231 is connected with a part of the second surface 2232, so that the coverage area of the upper surface 2311 of the first connection portion 231 is small, and the mass of the vibration system 2 is favorably reduced for the framework 23 structure made of metal.
Referring to fig. 2, 3 and 6, the second fixing portion 224 has a third sub-connecting portion 224a and a fourth sub-connecting portion 224b perpendicular to each other and connected to the frame 11, the third sub-connecting portion 224a has a third surface 2241 facing the dome 21 and a fourth surface 2242 facing away from the dome 21, the fourth sub-connecting portion 224b includes a fifth surface 2243 and a sixth surface 2244 facing away from each other, the frame 11 has a body portion 11a and a protruding portion 11b disposed around the periphery of the frame 23, the body portion 11a has a top surface 112, a bottom surface 115 facing away from the top surface 112, a side surface 113 and an inner surface 114 bent from the outer periphery of the top surface 112 in a direction away from the top surface 112, the top surface 112 is connected to the fourth surface 2242, the side surface 113 is connected to the sixth surface 2244, and the inner surface 114 is connected to the ring-folding portion 221.
Referring to fig. 2, in the present invention, the vibration system further includes a first flexible circuit board 26 and a second flexible circuit board 27, and a first auxiliary sound film 28 and a second auxiliary sound film 29 arranged at an interval, the first flexible circuit board 26 includes a pad 26a, a first terminal 262, and a second terminal 263, the second flexible circuit board 27 includes a pad 27a, and the pad 26a and the pad 27a may provide a platform for connecting the first flexible circuit board 26 and the second flexible circuit board 27 to other devices. The first flexible circuit board 26 and the second flexible circuit board 27 include a seventh surface 2611 and an eighth surface 2612 which are arranged in a reverse manner, the seventh surface 2611 is attached to the lower surface of the main body portion 11a close to the first auxiliary sound film 28, the first flexible circuit board 26 is connected to the first sub-connecting portion 232, the second flexible circuit board 27 is connected to the second sub-connecting portion 233, the first auxiliary sound film 28 is connected to one side of the first flexible circuit board 26 away from the frame 23, and the second auxiliary sound film 29 is connected to one side of the second flexible circuit board 27 away from the frame 23.
In the present invention, the vibration system 2 further includes a gasket 24, and the body portion 211, the gasket 24, and the voice coil 25 are stacked in this order.
Referring to fig. 2, the voice coil 25 and the washer 24 are both rectangular ring structures, and the shape and size of the washer 24 are adapted to the shape and size of the voice coil 25. The gasket 24 has a first upper end surface 241 and a first lower end surface 242 which are opposite to each other, the voice coil 25 has a voice coil body 251, a first lead 252, a second lead 253 and a through hole 254, the first lead 252 is electrically connected to the pad 26a, and the second lead 253 is electrically connected to the pad 26a, so that the voice coil 25 is electrically connected to the first flexible circuit board 26. The voice coil body 251 is a closed ring-shaped structure, and has a second upper end surface 2511 and a second lower end surface 2512 which are arranged oppositely, the first lead 252 may be led out from the second upper end surface 2511 of the voice coil 25 to the pad 26a and electrically connected to the first terminal 262 of the pad 26a, and the second lead 253 may be led out from the second lower end surface 2512 of the voice coil 25 to the pad 26a and electrically connected to the second terminal 263 of the pad 26 a.
According to the invention, the voice coil 25 and the washer 24 are set to be in the same rectangular annular structure, the sizes can be matched, the structure is simple, the size precision of parts can be improved, and the consistency of product assembly can be further improved, and the washer 24 is arranged between the ball top 21 and the voice coil 25, so that the height position of the voice coil 25 can be adjusted by adjusting the height of the washer 24.
In the present invention, the magnetic circuit system 3 includes a magnetic yoke 31, a main magnetic steel 32, a first sub magnetic steel 33, a second sub magnetic steel 34, a third sub magnetic steel 35, a fourth sub magnetic steel 36 and a pole core 37, the magnetic yoke 31 is connected to the bottom surface 115 and surrounds the outside of the voice coil 25, and the magnetic yoke 31, the first auxiliary sound film 28 and the second auxiliary sound film 29 are disposed at an interval.
The main magnetic steel 32 is located inside the magnetic yoke 31, the first, second, third and fourth sub-magnetic steels 33, 34, 35 and 36 are all arranged around the periphery of the main magnetic steel 32 at intervals, magnetic gaps 38 are formed between the first, second and third sub-magnetic steels 33, 34 and 35 and the main magnetic steel 32, and a part of the voice coil 25 is inserted into the magnetic gaps 38. The pole piece 37 is disposed in the through hole 254 of the voice coil 25, and the pole piece 37 is disposed adjacent to the main magnet 32, and the pole piece 37 guides the magnetic field generated from the main magnet 32 to the voice coil 25.
The main magnet 32 may be of a regular structure, for example, the main magnet 32 may be of a rectangular parallelepiped structure, the first sub-magnet 33 and the first side of the main magnet 32 are spaced apart from each other to form a first gap, the second sub-magnet 34 and the second side of the main magnet 32 are spaced apart from each other to form a second gap, the third sub-magnet 35 and the third side of the main magnet 32 are spaced apart from each other to form a third gap, the fourth sub-magnet 36 and the fourth side of the main magnet 32 are spaced apart from each other to form a fourth gap, and the fourth gap, the third gap, the second gap and the first gap communicate with each other to form a magnetic gap 38. Wherein, the first side, the second side, the third side and the fourth side of the main magnet steel 32 are connected in sequence. The structure of first auxiliary magnetic steel 33 and the structure of second auxiliary magnetic steel 34 may be different, for example, first auxiliary magnetic steel 33 may be a regular rectangular parallelepiped structure, and second auxiliary magnetic steel 34 may include a first portion and a second portion, the second portion being disposed on the side of the first portion. The structure of the third sub magnetic steel 35 may be the same as that of the first sub magnetic steel 33, and the structure of the fourth sub magnetic steel 36 may be the same as that of the second sub magnetic steel 34. In other embodiments, the structures of the first, second, third and fourth secondary magnetic steels 33, 34, 35 and 36 may also be the same.
It should be noted that the structure of the main magnet 32 is not limited to this, for example, the main magnet 32 may also have other regular structures, or the main magnet 32 may also have an irregular structure.
In the present invention, the fixing system 1 further includes a bottom plate 12, and the bottom plate 12 covers one side of the main magnetic steel 32, the first sub magnetic steel 33, the second sub magnetic steel 34, the third sub magnetic steel 35, and the fourth sub magnetic steel 36, which is away from the magnetic yoke 31, to support the main magnetic steel 32, the first sub magnetic steel 33, the second sub magnetic steel 34, the third sub magnetic steel 35, and the fourth sub magnetic steel 36.
While the foregoing is directed to embodiments of the present invention, it will be understood by those skilled in the art that various changes may be made without departing from the spirit and scope of the invention.
Claims (6)
1. A sound production device comprises a basin frame and a vibration system and a magnetic circuit system which are fixedly connected with the basin frame, wherein the vibration system comprises a vibration diaphragm, a framework and a voice coil for driving the vibration diaphragm, the vibration diaphragm comprises a ball top and a main sound film which are sequentially stacked, the main sound film comprises a folded ring part, a first fixing part and a second fixing part, the first fixing part is positioned on the inner side of the folded ring part, the second fixing part is positioned on the outer side of the folded ring part, the first fixing part is provided with a first surface facing the ball top and a second surface facing away from the ball top, the ball top comprises a main body part and a connecting part extending from the main body part, the first surface is all connected with the connecting part of the ball top, the second fixing part is connected with the basin frame, the basin frame is arranged on the periphery of the framework and at intervals with the framework to form a containing space between the framework and the basin frame, the folding ring part is positioned in the accommodating space, a step part is formed between the main body part and the connecting parts, the first fixing part is accommodated in the step part, the framework comprises a first connecting part, a first sub-connecting part and a second sub-connecting part which are connected to two sides of the first connecting part and are oppositely arranged, the first connecting part is connected with a part of the second surface, the second fixing part comprises a third sub-connecting part and a fourth sub-connecting part which are mutually perpendicular and are both connected with the basin frame, the third sub-connecting part comprises a third surface arranged towards the top of the ball and a fourth surface arranged back to the top of the ball, the fourth sub-connecting part comprises a fifth surface and a sixth surface which are oppositely arranged, the basin frame comprises a body part and a convex part which are arranged around the periphery of the framework, the body part comprises a top surface, a bottom surface which is oppositely arranged with the top surface, and a side surface and an inner surface which are arranged by bending from the outer periphery of the top surface towards the direction deviating from the top surface, the top surface with the fourth face is connected, the side with the sixth face is connected, the internal surface is connected with the hinge portion, vibration system still includes first flexible circuit board and the supplementary sound membrane of second of the first flexible circuit board and the second flexible circuit board that the interval set up each other and the supplementary sound membrane of first supplementary sound membrane and the second that the interval set up, first flexible circuit board is connected with first sub-connecting portion, the second flexible circuit board with the second sub-connecting portion are connected, first supplementary sound membrane with keep away from in the first flexible circuit board one side of skeleton is connected, the supplementary sound membrane of second with keep away from in the second flexible circuit board one side of skeleton is connected.
2. The apparatus according to claim 1, wherein said vibration system further comprises a washer, and said main body portion, said washer and said voice coil are sequentially stacked.
3. The apparatus according to claim 2, wherein said voice coil and said washer are each a rectangular ring structure, and wherein the shape and size of said washer are adapted to the shape and size of said voice coil.
4. The apparatus according to claim 1, wherein the body has a bottom surface opposite to the top surface, the magnetic circuit system comprises a magnetic yoke connected to the bottom surface, a main magnetic steel located inside the magnetic yoke, and a plurality of secondary magnetic steels spaced around the main magnetic steel, each of the plurality of secondary magnetic steels has a magnetic gap with the main magnetic steel, and a portion of the voice coil is suspended in the magnetic gap.
5. The apparatus according to claim 4, wherein said magnetic circuit system further comprises a pole core laminated on the main magnetic steel, said voice coil having a through hole and a voice coil body surrounding said through hole, said pole core being accommodated in said through hole and located between said main magnetic steel and said dome.
6. The apparatus according to claim 4, further comprising a fixing system, wherein the fixing system further comprises a bottom plate, and the bottom plate is covered on a side of the plurality of secondary magnetic steels facing away from the magnetic yoke to support the plurality of secondary magnetic steels and the main magnetic steel.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011507347.7A CN112468939B (en) | 2020-12-18 | 2020-12-18 | Sound production device |
| PCT/CN2020/142156 WO2022126793A1 (en) | 2020-12-18 | 2020-12-31 | Sound production device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011507347.7A CN112468939B (en) | 2020-12-18 | 2020-12-18 | Sound production device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112468939A CN112468939A (en) | 2021-03-09 |
| CN112468939B true CN112468939B (en) | 2022-06-03 |
Family
ID=74803628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011507347.7A Active CN112468939B (en) | 2020-12-18 | 2020-12-18 | Sound production device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN112468939B (en) |
| WO (1) | WO2022126793A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009060574A (en) * | 2007-08-07 | 2009-03-19 | Onkyo Corp | Loudspeaker diaphragm and electrodynamic loudspeaker using same |
| CN103856874A (en) * | 2014-03-05 | 2014-06-11 | 歌尔声学股份有限公司 | Loudspeaker vibration system |
| CN208190901U (en) * | 2018-01-30 | 2018-12-04 | 瑞声科技(新加坡)有限公司 | Microphone device |
| CN210351612U (en) * | 2019-06-30 | 2020-04-17 | 瑞声科技(新加坡)有限公司 | Sound production device and loudspeaker box |
| CN111641907A (en) * | 2020-06-24 | 2020-09-08 | 瑞声科技(新加坡)有限公司 | Sound production device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109803198A (en) * | 2018-12-30 | 2019-05-24 | 瑞声声学科技(深圳)有限公司 | Sounding device |
| CN209390343U (en) * | 2018-12-30 | 2019-09-13 | 瑞声科技(新加坡)有限公司 | Microphone device |
| CN209861150U (en) * | 2018-12-31 | 2019-12-27 | 瑞声光电科技(常州)有限公司 | Sound production device |
| CN111405431B (en) * | 2019-12-27 | 2021-07-09 | 瑞声科技(新加坡)有限公司 | Sound production device and loudspeaker box thereof |
| CN111405425B (en) * | 2019-12-27 | 2021-03-26 | 瑞声科技(新加坡)有限公司 | Sound production device |
-
2020
- 2020-12-18 CN CN202011507347.7A patent/CN112468939B/en active Active
- 2020-12-31 WO PCT/CN2020/142156 patent/WO2022126793A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009060574A (en) * | 2007-08-07 | 2009-03-19 | Onkyo Corp | Loudspeaker diaphragm and electrodynamic loudspeaker using same |
| CN103856874A (en) * | 2014-03-05 | 2014-06-11 | 歌尔声学股份有限公司 | Loudspeaker vibration system |
| CN208190901U (en) * | 2018-01-30 | 2018-12-04 | 瑞声科技(新加坡)有限公司 | Microphone device |
| CN210351612U (en) * | 2019-06-30 | 2020-04-17 | 瑞声科技(新加坡)有限公司 | Sound production device and loudspeaker box |
| CN111641907A (en) * | 2020-06-24 | 2020-09-08 | 瑞声科技(新加坡)有限公司 | Sound production device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022126793A1 (en) | 2022-06-23 |
| CN112468939A (en) | 2021-03-09 |
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