CN207382568U - A kind of sound-producing device - Google Patents
A kind of sound-producing device Download PDFInfo
- Publication number
- CN207382568U CN207382568U CN201721459582.5U CN201721459582U CN207382568U CN 207382568 U CN207382568 U CN 207382568U CN 201721459582 U CN201721459582 U CN 201721459582U CN 207382568 U CN207382568 U CN 207382568U
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- China
- Prior art keywords
- sound
- producing device
- acoustic aperture
- protecgulum
- antifreeze plate
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Abstract
The utility model is related to electroacoustic techniques fields, disclose a kind of sound-producing device.In the utility model, which includes the vibrational system with vibrating diaphragm, the magnetic circuit system for driving diaphragm oscillations sounding and the auxiliary system for accommodating magnetic circuit system and vibrational system；Auxiliary system includes at least a protecgulum, protecgulum, which corresponds to, offers through hole on the direction of vibration of vibrating diaphragm, protecgulum is covered with breathable barrier away from the one side of vibrating diaphragm, breathable barrier covers through hole, supporting layer is provided between breathable barrier and protecgulum, supporting layer correspondence opens up the acoustic aperture that goes out connected with through hole, and breathable barrier covers out acoustic aperture, and supporting layer includes antifreeze plate.The sound-producing device can effectively improve the leakage field phenomenon of sound-producing device.
Description
Technical field
The utility model is related to electroacoustic techniques field, more particularly to a kind of sound-producing device.
Background technology
With the development of science and technology, various electronic products are more and more applied in life, and sound-producing device is
A kind of very common component, is applied in the electronic equipments such as mobile phone, laptop, hearing aid in electronic product
Sound-producing device, the sound-producing device can help electronic goods to realize the various functions related with sound.Current most sounding
There is breathable barrier structure in device, the presence of the structure can reduce sundries and dust enters inside sound-producing device, so as to
The normal work of sound-producing device is not influenced, however in existing sound-producing device, also it is commonly present more leakage field phenomenon, the phenomenon
Also the normal work of sound-producing device can be seriously affected.
Utility model content
The purpose of this utility model is to provide a kind of sound-producing devices, can effectively improve the leakage field phenomenon of sound-producing device.
In order to solve the above technical problems, the embodiment of the utility model provides a kind of sound-producing device, comprising：With shaking
Vibration of membrane system, the magnetic circuit system for driving diaphragm oscillations sounding and the auxiliary system for accommodating magnetic circuit system and vibrational system；
Auxiliary system includes at least a protecgulum, and protecgulum corresponds to and through hole is offered on the direction of vibration of vibrating diaphragm, and protecgulum deviates from the one of vibrating diaphragm
Side cover is equipped with breathable barrier, and breathable barrier covering through hole is provided with supporting layer, supports between breathable barrier and protecgulum
Layer is corresponding to open up the acoustic aperture that goes out connected with through hole, and breathable barrier covers out acoustic aperture, and supporting layer includes antifreeze plate.
The utility model embodiment in terms of existing technologies, passes through the protecgulum in breathable barrier and sound-producing device
Between antifreeze plate is set, using antifreeze plate shielding from magnetic circuit system via protecgulum to the magnetic field energy of sound-producing device External leakage,
So as to effectively improve the leakage field phenomenon of sound-producing device.
In addition, go out acoustic aperture and the equal face vibrating diaphragm setting of through hole.
In addition, supporting layer further includes buffer layer, buffer layer is adhesively fixed with antifreeze plate.
In addition, buffer layer is rubber or foam.
In addition, antifreeze plate is folded between buffer layer and protecgulum.
In addition, antifreeze plate is folded between buffer layer and breathable barrier.
In addition, antifreeze plate is carbon steel material antifreeze plate.
In addition, go out that acoustic aperture includes being opened on antifreeze plate first goes out acoustic aperture and opens up speaking with first on the buffer layer
The second of hole connection goes out acoustic aperture, and first goes out acoustic aperture to be multiple, and the second aperture for going out acoustic aperture goes out acoustic aperture more than first.
In addition, buffer layer is annular, the second aperture for going out acoustic aperture is more than the aperture of through hole.
In addition, vibrating diaphragm, which includes face, goes out the top dome portion of acoustic aperture middle position and around the ring portion in top dome portion, protecgulum and folding
Ring portion is fixed, and multiple first go out the setting of acoustic aperture face top dome portion.
Description of the drawings
Fig. 1 is the dimensional structure diagram of sound-producing device in the utility model first embodiment；
Fig. 2 is the explosive view of sound-producing device shown in Fig. 1；
Fig. 3 is cross-sectional view of the sound-producing device shown in Fig. 1 along line A-A.
Specific embodiment
It is new to this practicality below in conjunction with attached drawing to make the purpose of this utility model, technical solution and advantage clearer
Each embodiment of type is explained in detail.It is however, it will be understood by those skilled in the art that each in the utility model
In embodiment, many technical details are proposed in order to which reader is made to more fully understand the utility model.But even if without this
A little technical details and many variations based on following embodiment and modification, can also realize each claim of the utility model
Technical solution claimed.
The first embodiment of the utility model is related to a kind of sound-producing device 100, as shown in Figs. 1-3, the sound-producing device 100
Including vibrational system 1, magnetic circuit system 2 and accommodate the vibrational system 1 and the auxiliary system 3 of magnetic circuit system 2.Auxiliary system 3 is wrapped
The frame 30 with receiving space and the protecgulum 31 for being fixed on 30 top of frame are included, through hole 311 is offered on protecgulum 31；
The voice coil 12 that vibrational system 1 includes vibrating diaphragm 11 and vibrating diaphragm 11 is driven to vibrate, voice coil 12 are fixed below vibrating diaphragm 11, and the one of vibrating diaphragm 11
Part is folded between protecgulum 31 and frame 30, and the through hole 311 on protecgulum 31 particularly corresponds to the direction of vibration of vibrating diaphragm 11
It opens up, the sound that the vibration of vibrating diaphragm 11 generates thus is made to be propagated through the through hole 311；Magnetic circuit system 2 includes being arranged on frame 30
Interior magnetic bowl 22 and the magnet steel 21 for being fixed on the magnetic bowl 22, as shown in figure 3,22 edge of magnetic bowl formed it is opposite with magnet steel 21 curved
Folding, forms magnetic gap between magnet steel 21 and bending, voice coil 12 is inserted into the magnetic gap.The sound-producing device 100 further include it is ventilative every
Off member 4 and supporting layer 5, breathable barrier 4 is opened on protecgulum 31 away from the one side of vibrating diaphragm 11 and covers through hole 311, not
Sundries is also prevented from during interfering sound transmission and dust enters sound-producing device 100, and supporting layer 5 is arranged on ventilative isolation
Between part 4 and protecgulum 31, on supporting layer 5 it is corresponding offer connected with through hole 311 go out acoustic aperture 53, this goes out acoustic aperture 53 and also may be used
Sound-producing device 100 to be helped to propagate sound well, it is to be understood that the breathable barrier 4 of anti-sundries and dust also covers
On acoustic aperture 53 is gone out.
In present embodiment, supporting layer 5 includes antifreeze plate 51, that is to say, that antifreeze plate 51 is arranged on 4 He of breathable barrier
Between protecgulum 31, the setting of the antifreeze plate 51, can shield at magnetic circuit system 1 spread out of via at protecgulum 31 to sound-producing device
The magnetic field energy of 100 External leakages thereby reduces the magnetic flux leakage of sound-producing device 100, so as to improve leakage field phenomenon.
Further, since the setting of the antifreeze plate 51 reduces the magnetic flux leakage of sound-producing device 100, armoured magnetic field energy prevents magnetic
Field energy is leaked into outside sound-producing device, this further prevents magneticaction that the iron filings outside sound-producing device 100 are sucked hair
The phenomenon that 100 inside of acoustic device, enables sound-producing device 100 to be worked normally from the interference that external sundries enters.
It is noted that in present embodiment, antifreeze plate 51 is carbon steel material antifreeze plate.Carbon steel material has moulding
Well, the advantages that toughness is good, intensity is big, wearability is strong has preferable reliability and longer service life.
It is understood that in present embodiment, supporting layer 5 further includes buffer layer 52 in addition to including antifreeze plate 51,
It is noted that since the materials such as rubber and foam have good elasticity, with good buffer protection function, because
This, in present embodiment, the material of buffer layer 52 is rubber or foam etc., it is to be understood that some other to have good delay
The material for rushing protective effect can also be used to make the buffer layer 52 in present embodiment.
In present embodiment, between buffer layer 52 and antifreeze plate 51 there are many fixed modes, used in present embodiment
Be bonding mode, for bonding compared to for other fixed forms, technique is relatively simple, at low cost and practical.Specifically, delay
Rush between layer 52 and antifreeze plate 51 can be carried out by viscose glue it is be bonded or by the way that glue-line is set to be bonded, can be with
It is to be bonded otherwise.
In addition, the specific location of the antifreeze plate 51 to bond together with buffer layer 52 can also be according to specifically needing to carry out
It sets, such as in an embodiment of present embodiment, antifreeze plate 51 can be bonded in buffer layer 51 close to protecgulum 31 for this
One side, that is to say, that antifreeze plate 51 is folded between buffer layer 52 and protecgulum 31.
It is understood that in another embodiment of present embodiment, antifreeze plate 51 can also be bonded in buffering
52 one side away from protecgulum of layer, that is to say, that antifreeze plate 51 is folded between buffer layer 52 and breathable barrier 4, so set,
Make buffer layer 52 closer to be arranged on the protecgulum 31 of sound-producing device 100, this preventing leakage field using antifreeze plate 51
Meanwhile the abrasion between antifreeze plate 51 and protecgulum 31 will not be caused, therefore the service life of antifreeze plate 51 and protecgulum 31 will not be
It is affected.
Which kind of, it should be noted that no matter above-mentioned position set-up mode used to antifreeze plate 51, do not influence
The normal work of acoustic device 100, and antifreeze plate 51 can improve the leakage field phenomenon of sounder 100 well.
In present embodiment, in order to which sound-producing device 100 is helped preferably to transfer sound, divide on protecgulum 31 and supporting layer 5
The through hole 311 and go out acoustic aperture 53 for not obstructing that sound transfers and space is interconnected are not provided with, and in order to further better
Sound is helped to transfer, in present embodiment, through hole 311 and the vibrating diaphragm 11 gone out inside 53 equal face sound-producing device 100 of acoustic aperture are set
It puts.
In present embodiment, supporting layer 5 includes antifreeze plate 51 and buffer layer 52, therefore further, is opened on supporting layer 5
If the acoustic aperture 53 that goes out specifically include that first be opened on antifreeze plate 51 goes out acoustic aperture 531 and what is be opened on buffer layer 52 second goes out
Acoustic aperture 532, wherein, first goes out acoustic aperture 531 and second to go out acoustic aperture 532 be interconnected.
For a better understanding, a kind of this feelings of buffer layer 52 away from 31 one side of protecgulum are next arranged on antifreeze plate 51
Condition, which illustrates, (can also do it is understood that antifreeze plate 51 is arranged on buffer layer 52 in the case of 31 one side of protecgulum
Following similar structure setting), in present embodiment, first on antifreeze plate 51 goes out acoustic aperture 531 to be multiple, on buffer layer 52
Second aperture for going out acoustic aperture 532 goes out acoustic aperture 531 more than first, so set, can make the sound that sound-producing device 100 is sent more
It is more, more smoothly pass through supporting layer 5.In addition, as shown in Fig. 2, in present embodiment, the protecgulum 31 of sound-producing device 100 is with supporting
The one side of 5 contact of layer is annular in shape, and buffer layer 52 is also accordingly arranged to annular, and buffer layer 52 can preferably be fitted in hair as a result,
On acoustic device 100, good buffer protection function is provided for sound-producing device 100, it is worth mentioning at this point that, it is opened on buffer layer 52
Second go out acoustic aperture 532 aperture be more than protecgulum 31 on through hole 311 aperture, so set, making the sound of sound-producing device 100
When being spread out of at protecgulum 31, buffer layer 52 will not reduce the size of acoustic propagation path.
It is noted that in present embodiment, vibrating diaphragm 11 include positioned at the top dome portion 111 at center and with top dome portion 111
The ring portion 112 of edge connection, the outer edge in ring portion 112 are folded between protecgulum 31 and frame 30, and vibrating diaphragm 11 passes through ring
Portion 112 is connected with protecgulum 31 and is fixed, and multiple first are offered on antifreeze plate 51 and goes out acoustic aperture 531, specifically, multiple first go out
531 equal face top dome portion 111 of acoustic aperture sets that sound-producing device 100 is helped preferably to make a sound.
It will be understood by those skilled in the art that the respective embodiments described above are to realize the specific implementation of the utility model
Example, and in practical applications, can to it, various changes can be made in the form and details, without departing from the spirit of the utility model
And scope.
Claims (10)
1. a kind of sound-producing device, including the vibrational system with vibrating diaphragm, the driving diaphragm oscillations sounding magnetic circuit system and
Accommodate the auxiliary system of the magnetic circuit system and vibrational system；The auxiliary system includes at least a protecgulum, and the protecgulum corresponds to
Through hole is offered on the direction of vibration of the vibrating diaphragm, it is characterised in that：The protecgulum is covered with away from the one side of the vibrating diaphragm
Breathable barrier, the breathable barrier cover the through hole, branch are provided between the breathable barrier and the protecgulum
Layer is supportted, the supporting layer correspondence opens up the acoustic aperture that goes out connected with the through hole, goes out acoustic aperture described in the breathable barrier covering,
The supporting layer includes antifreeze plate.
2. sound-producing device according to claim 1, which is characterized in that it is described go out acoustic aperture and the equal face of the through hole described in
Vibrating diaphragm is set.
3. sound-producing device according to claim 1, which is characterized in that the supporting layer further includes buffer layer, the buffering
Layer is adhesively fixed with the antifreeze plate.
4. sound-producing device according to claim 3, which is characterized in that the buffer layer is rubber or foam.
5. sound-producing device according to claim 4, which is characterized in that the antifreeze plate be folded in the buffer layer with it is described
Between protecgulum.
6. sound-producing device according to claim 4, which is characterized in that the antifreeze plate be folded in the buffer layer with it is described
Between breathable barrier.
7. sound-producing device according to claim 1, which is characterized in that the antifreeze plate is carbon steel material antifreeze plate.
8. the sound-producing device according to any one of claim 5 or 6, which is characterized in that it is described go out acoustic aperture include be opened in
First on the antifreeze plate go out acoustic aperture and be opened on the buffer layer with described first goes out that acoustic aperture connects second speaks
Hole, described first goes out acoustic aperture to be multiple, and the described second aperture for going out acoustic aperture goes out acoustic aperture more than described first.
9. sound-producing device according to claim 8, which is characterized in that the buffer layer is annular, and described second goes out acoustic aperture
Aperture be more than the through hole aperture.
10. sound-producing device according to claim 8, which is characterized in that the vibrating diaphragm includes going out acoustic aperture center described in face
The top dome portion of position and around the ring portion in the top dome portion, the protecgulum is fixed with the ring portion, and multiple described first go out
Top dome portion described in acoustic aperture face is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721459582.5U CN207382568U (en) | 2017-10-23 | 2017-10-23 | A kind of sound-producing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721459582.5U CN207382568U (en) | 2017-10-23 | 2017-10-23 | A kind of sound-producing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207382568U true CN207382568U (en) | 2018-05-18 |
Family
ID=62334208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721459582.5U Active CN207382568U (en) | 2017-10-23 | 2017-10-23 | A kind of sound-producing device |
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| Country | Link |
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| CN (1) | CN207382568U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110798785A (en) * | 2019-10-10 | 2020-02-14 | 瑞声科技(新加坡)有限公司 | Sound production device |
| WO2022061989A1 (en) * | 2020-09-23 | 2022-03-31 | 瑞声声学科技(深圳)有限公司 | Loudspeaker and electronic device |
| WO2022061988A1 (en) * | 2020-09-23 | 2022-03-31 | 瑞声声学科技(深圳)有限公司 | Loudspeaker and electronic device |
| CN114845216A (en) * | 2021-12-30 | 2022-08-02 | 歌尔股份有限公司 | Sound production device and electronic device |
-
2017
- 2017-10-23 CN CN201721459582.5U patent/CN207382568U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110798785A (en) * | 2019-10-10 | 2020-02-14 | 瑞声科技(新加坡)有限公司 | Sound production device |
| WO2022061989A1 (en) * | 2020-09-23 | 2022-03-31 | 瑞声声学科技(深圳)有限公司 | Loudspeaker and electronic device |
| WO2022061988A1 (en) * | 2020-09-23 | 2022-03-31 | 瑞声声学科技(深圳)有限公司 | Loudspeaker and electronic device |
| CN114845216A (en) * | 2021-12-30 | 2022-08-02 | 歌尔股份有限公司 | Sound production device and electronic device |
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