CN207475845U - A kind of vibrating diaphragm and the acoustical generator including the vibrating diaphragm - Google Patents
A kind of vibrating diaphragm and the acoustical generator including the vibrating diaphragm Download PDFInfo
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- CN207475845U CN207475845U CN201721630368.1U CN201721630368U CN207475845U CN 207475845 U CN207475845 U CN 207475845U CN 201721630368 U CN201721630368 U CN 201721630368U CN 207475845 U CN207475845 U CN 207475845U
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- vibrating diaphragm
- reinforcement part
- central portion
- fixed
- voice coil
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- Diaphragms For Electromechanical Transducers (AREA)
Abstract
The utility model discloses a kind of vibrating diaphragm, which is included with the fixed fixed part of acoustical generator shell, the ring portion being wholely set with fixed part and the central portion in ring portion；The center of the central portion includes hollow-out parts, and the vibrating diaphragm further includes and fixed reinforcement part is combined with the central portion surface, and the reinforcement part covers the hollow-out parts；Include the cyclic annular gear glue portion formed by reinforcement part surface outwardly convex on the reinforcement part exposed by the hollow-out parts.The diaphragm structure solves the problems, such as that excessive glue easily occurs during injection molding for existing vibrating diaphragm well.The invention also discloses the acoustical generators comprising the vibrating diaphragm.
Description
Technical field
The utility model is related to electroacoustic switch technology fields.More particularly, to a kind of vibrating diaphragm and including the vibrating diaphragm
Acoustical generator.
Background technology
As the device that can convert electrical energy into acoustic energy, acoustical generator has been widely used in the terminal devices such as mobile phone
In.
The vibrational system and magnetic circuit system that acoustical generator generally includes shell and is contained in the shell, wherein, vibration system
System includes vibrating diaphragm and the voice coil being incorporated into below vibrating diaphragm.In the structure of vibrating diaphragm, the vibrating diaphragm has generally included fixed part, with consolidating
The ring portion for determining the male female structure that portion is wholely set and the central portion in ring portion, shake in the prior art in order to increase
The rigidity of film improves the vibration performance of vibrating diaphragm, it will usually be combined on the central portion of vibrating diaphragm and be fixed with reinforcement part.Many miniature
All it is as vibrating diaphragm, to improve its waterproof action using pellosil in loud speaker.Silica gel vibrating diaphragm is typically using liquid silica gel as original
Material injection is formed, and since liquid silica gel mobility is big, when injection easily trickles excessive glue, to prevent such case, in injection mold
On can use upper/lower die overvoltage reinforcement part, but reinforcement part is there are thickness deviation, when the thickness of reinforcement part is on the lower side in limited time, in vibrating diaphragm
It is easy for excessive glue occur with the junction of reinforcement part.In order to improve this problem, in the prior art when being molded vibrating diaphragm, upper/lower die
It overwhelms at intermediate reinforcement part, die clearance is smaller than reinforcement part thickness, and excessive glue is prevented by overvoltage.But this method still can not be thorough
Bottom solves the problems, such as excessive glue.
In view of the above problems, need to provide a kind of new diaphragm structure, the defects of to solve present in the prior art.
Utility model content
First of the utility model is designed to provide a kind of vibrating diaphragm, to solve process of the existing vibrating diaphragm in injection molding
In the problem of excessive glue easily occurs.
Second of the utility model is designed to provide a kind of acoustical generator for including above-mentioned vibrating diaphragm.
To reach above-mentioned first purpose, the utility model provides a kind of vibrating diaphragm, and the vibrating diaphragm includes and acoustical generator shell
Fixed fixed part, the ring portion being wholely set with fixed part and the central portion in ring portion；In the central portion
Centre includes hollow-out parts, and the vibrating diaphragm further includes and fixed reinforcement part is combined with the central portion surface, and the reinforcement part covers institute
State hollow-out parts；Include the cyclic annular gear glue formed by reinforcement part surface outwardly convex on the reinforcement part exposed by the hollow-out parts
Portion.
Preferably, the gear glue portion is located at close to the position at hollow-out parts edge, and the outer side wall surface in the gear glue portion with
Glue groove is formed between the sidewall surfaces of hollow-out parts.
Preferably, the reinforcement part is located at a side surface of the close or separate voice coil of the central portion.
Preferably, the central portion further includes the interior concave portion for being recessed inwardly and being formed by central portion surface, and reinforcement part is accommodated in
In the interior concave portion.
Preferably, the reinforcement part is located at the central portion close to a side surface of voice coil, the reinforcement part further include by
The extension that the both sides of the edge of the side surface far from the central portion extend outward on reinforcement part.
Preferably, equally distributed through-hole is included on the reinforcement part exposed by the hollow-out parts.
Preferably, the vibrating diaphragm is pellosil；The fixed part, ring portion and central portion integrated injection molding.
To reach above-mentioned second purpose, the utility model provides a kind of acoustical generator, including vibrational system, the vibration
System includes vibrating diaphragm as described above and is combined fixed voice coil with the vibrating diaphragm.
Preferably, the voice coil is located at the homonymy of the vibrating diaphragm with the reinforcement part, and the edge of the central portion is located at institute
The outside at reinforcement part edge is stated, on a side surface of the voice coil with reference to the separate vibrating diaphragm for being fixed on the reinforcement part, alternatively, institute
Voice coil is stated with reference on the central portion being fixed on the outside of the reinforcement part edge.
Preferably, the voice coil is located at the both sides of the vibrating diaphragm with the reinforcement part, and the voice coil is with reference to described in being fixed on
On the surface far from the reinforcement part of central portion.
The beneficial effects of the utility model are as follows：
A purpose according to the present utility model, in vibrating diaphragm technical solution provided by the utility model, in by vibrating diaphragm
The gear glue portion of annular formed by reinforcement part surface outwardly convex is provided on the reinforcement part that hollow-out parts are exposed in the portion of centre, is made
Vibrating diaphragm is obtained, especially silica gel vibrating diaphragm, by the effect of blocking in the gear glue portion, can prevent from shaking well during injection molding
There is the problem of excessive glue in the junction of film central portion and reinforcement part.In addition, another object according to the present utility model, this practicality is new
Type also provides a kind of acoustical generator for including above-mentioned diaphragm structure, with the vibrating diaphragm relative to advantage phase possessed by the prior art
Together, details are not described herein.
Description of the drawings
Specific embodiment of the present utility model is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 shows a kind of structure diagram of the vibrating diaphragm of embodiment of the utility model.
Fig. 2 shows the diaphragm structure schematic diagrames of the utility model another embodiment.
Fig. 3 shows a kind of one of reinforcement part schematic diagram of embodiment of the utility model.
Fig. 4 shows a kind of structure diagram of the acoustical generator vibrational system of embodiment of the utility model.
Specific embodiment
In order to illustrate more clearly of the utility model, the utility model is done into one with reference to preferred embodiments and drawings
The explanation of step.Similar component is indicated with identical reference numeral in attached drawing.It will be appreciated by those skilled in the art that below
Specifically described content is illustrative and be not restrictive, and should not limit the scope of protection of the utility model with this.
In order to improve vibrating diaphragm, especially silica gel vibrating diaphragm is in injection molding process, the knot between vibrating diaphragm central portion and reinforcement part
Easily occurs the problem of excessive glue at conjunction, one embodiment of the utility model provides a kind of vibrating diaphragm, as depicted in figs. 1 and 2, described to shake
Film includes fixed part 1 fixed with acoustical generator shell, the ring portion 2 being wholely set with fixed part 1 and in ring portion 2
Central portion 3；The center of the central portion 3 includes hollow-out parts, and the vibrating diaphragm is further included is combined fixation with 3 surface of central portion
Reinforcement part 4, the reinforcement part 4 covers the hollow-out parts；Include on the reinforcement part 4 exposed by the hollow-out parts by reinforcement
The cyclic annular gear glue portion 41 that 4 surface outwardly convex of portion is formed.
In the present embodiment, the reinforcement part 4 is planarized structure, but it should be understood by those skilled in the art that according to shaking
The structures such as spherical can also be used in the difference of the acoustical generator type of film application, reinforcement part, and the utility model does not limit this
System.
Existing silica gel vibrating diaphragm during injection molding, typically by reducing upper/lower die at the reinforcement part between
Away from, with improve there is the problem of excessive glue in the junction of vibrating diaphragm central portion and reinforcement part due to reinforcement part thickness is excessively thin.But due to
There may be thickness difference between different reinforcement parts, therefore this method not can solve the excessive glue problem.This implementation
In example, outwardly convex forms cyclic annular gear glue portion 41 on the corresponding face exposed by hollow-out parts on the reinforcement part of vibrating diaphragm 4, is being molded
Play the role of good baffle during molding, so as to solve the problems, such as excessive glue well.
In the vibrating diaphragm of the present embodiment, the effect that it can be good at keeping off glue is subject in the setting of 41 position of ring-type gear glue portion.
In a preferable example, the gear glue portion 41 is located at close to the position at hollow-out parts edge, and the lateral wall in the gear glue portion 41
Glue groove 5 is formed between surface and the sidewall surfaces of hollow-out parts.At this point, glue groove 5 can play the work of certain receiving glue
With, prevent its further it is excessive.
In a preferable example, the central portion 3 further includes the interior concave portion for being recessed inwardly and being formed by 3 surface of central portion,
Reinforcement part 4 is accommodated in the interior concave portion.In this example, by the setting of the interior concave portion, reinforcement part and the central portion are increased
Bonded area, improve bond strength between the two, and then adhesive-spill-preventing effect is more excellent.In addition, the structure also reduces vibrating diaphragm
Oscillating mass, the acoustical generator that can make to be provided with the vibrating diaphragm obtains higher sensitivity.
It should be noted that it is only a kind of whole convenient for guarantee diaphragm structure that the reinforcement part 4, which is accommodated in the interior concave portion,
The preferred embodiment of body.That is, can also be not provided with interior concave portion on the central portion surface, reinforcement part can be directly anchored to institute
It states on the surface of central portion, which is equally reached diaphragm structure provided in this embodiment to be had relative to the prior art
Advantage.
In a preferable example, when the reinforcement part 4 is located at the central portion 3 close to a side surface of voice coil, institute
It states reinforcement part 4 and further includes the extension extended outward by the both sides of the edge of the side surface far from the central portion on reinforcement part
42.By the extension, when voice coil is with reference to being fixed on the reinforcement part, the faying face between voice coil and reinforcement part can be increased
Product, and then increase binding force therebetween.
As shown in figure 3, in another specific example, include uniformly on the reinforcement part 4 that is exposed by the hollow-out parts
The through-hole 43 of distribution.Under conditions of this technical solution, which can play the role of good equilibrium air pressure.
In the vibrating diaphragm of the present embodiment, in order to mitigate the complexity of technique, in a preferable example, the fixed part 1, folding
3 integrated injection molding of ring portion 2 and central portion, material is silica gel.In addition, silica gel material may also function as good waterproof action.
As shown in figure 4, a kind of acoustical generator for including above-mentioned vibrating diaphragm, the sounding are also provided in the embodiment of the utility model
Device includes shell 7 and vibrational system and magnetic circuit system in the shell 7.The vibrational system includes being performed as described above in example
The vibrating diaphragm and the voice coil 6 combined with the vibrating diaphragm.The magnetic circuit system includes lower conductive magnetic yoke 8, positioned at lower 8 center of conductive magnetic yoke
The centring magnet 81 of position, the center magnetic conductive board 82 above centring magnet 81, around the side magnet of the centring magnet 81
83 and positioned at the while magnetic conductive board 84 above magnet 83；Centring magnet 81 forms with side magnet 83 and accommodates the voice coil 6
Magnetic gap.It should be understood by those skilled in the art that in practical applications, single magnetic circuit system knot can be used in the magnetic circuit system
Structure, three motor structures or five motor structures, the utility model do not limit, and acoustical generator and this practicality are new
The vibrating diaphragm that type is provided is identical relative to advantage possessed by the prior art, and details are not described herein.
In a preferable example, the voice coil 6 is located at the homonymy of the vibrating diaphragm, the central portion 3 with the reinforcement part 4
Edge be located at the outside at 4 edge of reinforcement part, the voice coil 6 is with reference to the one of the separate vibrating diaphragm for being fixed on the reinforcement part 4
On side surface, alternatively, the voice coil is with reference on the central portion being fixed on the outside of the reinforcement part edge.These types of organization plan is equal
With acoustical generator provided by the utility model relative to the advantage of the prior art.
In another preferable example, the voice coil is located at the both sides of the vibrating diaphragm, the voice coil knot with the reinforcement part
It closes and is fixed on the surface far from the reinforcement part of the central portion.It equally has acoustical generator provided by the utility model
Relative to the advantage of the prior art.
Obviously, above-described embodiment of the utility model is only intended to clearly illustrate the utility model example, and
It is not the restriction to the embodiment of the utility model, for those of ordinary skill in the art, in above description
On the basis of can also make other variations or changes in different ways, all embodiments can not be exhaustive here,
It is every to belong to obvious changes or variations that the technical solution of the utility model is extended out still in the utility model
The row of protection domain.
Claims (10)
1. a kind of vibrating diaphragm, the vibrating diaphragm is included with the fixed fixed part of acoustical generator shell, the ring portion being wholely set with fixed part,
And the central portion in ring portion；It is characterized in that, the center of the central portion includes hollow-out parts, the vibrating diaphragm further includes
Fixed reinforcement part is combined with the central portion surface, the reinforcement part covers the hollow-out parts；It is exposed by the hollow-out parts
Reinforcement part on include the cyclic annular gear glue portion formed by reinforcement part surface outwardly convex.
2. vibrating diaphragm according to claim 1, which is characterized in that the gear glue portion is located at close to the position at hollow-out parts edge,
And it is formed with glue groove between the outer side wall surface in the gear glue portion and the sidewall surfaces of hollow-out parts.
3. vibrating diaphragm according to claim 1, which is characterized in that it is close or separate that the reinforcement part is located at the central portion
One side surface of voice coil.
4. vibrating diaphragm according to claim 1, which is characterized in that the central portion is further included to be recessed inwardly by central portion surface
The interior concave portion formed, reinforcement part is accommodated in the interior concave portion.
5. vibrating diaphragm according to claim 1, which is characterized in that the reinforcement part is located at the central portion close to the one of voice coil
Side surface, the reinforcement part is further included to be extended outward by the both sides of the edge of the side surface far from the central portion on reinforcement part
Extension.
6. vibrating diaphragm according to claim 1, which is characterized in that include on the reinforcement part exposed by the hollow-out parts
The through-hole of even distribution.
7. vibrating diaphragm according to claim 1, which is characterized in that the vibrating diaphragm is pellosil；The fixed part, ring portion and
Central portion integrated injection molding.
8. a kind of acoustical generator, including vibrational system, which is characterized in that the vibrational system is included as claim 1-7 is any
Described in vibrating diaphragm and combined fixed voice coil with the vibrating diaphragm.
9. acoustical generator according to claim 8, which is characterized in that the voice coil is located at the vibrating diaphragm with the reinforcement part
Homonymy, the edge of the central portion are located at the outside at the reinforcement part edge, and the voice coil is with reference to being fixed on the reinforcement part
On a side surface far from vibrating diaphragm, alternatively, the voice coil is with reference on the central portion being fixed on the outside of the reinforcement part edge.
10. acoustical generator according to claim 8, which is characterized in that the voice coil is located at the vibrating diaphragm with the reinforcement part
Both sides, the voice coil with reference to be fixed on the central portion far from the reinforcement part surface on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721630368.1U CN207475845U (en) | 2017-11-29 | 2017-11-29 | A kind of vibrating diaphragm and the acoustical generator including the vibrating diaphragm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721630368.1U CN207475845U (en) | 2017-11-29 | 2017-11-29 | A kind of vibrating diaphragm and the acoustical generator including the vibrating diaphragm |
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| Publication Number | Publication Date |
|---|---|
| CN207475845U true CN207475845U (en) | 2018-06-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721630368.1U Active CN207475845U (en) | 2017-11-29 | 2017-11-29 | A kind of vibrating diaphragm and the acoustical generator including the vibrating diaphragm |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108696806A (en) * | 2018-06-25 | 2018-10-23 | 歌尔股份有限公司 | Loud speaker and portable terminal |
| CN108924709A (en) * | 2018-06-25 | 2018-11-30 | 歌尔股份有限公司 | Microphone device and portable terminal |
| CN109968684A (en) * | 2019-03-13 | 2019-07-05 | 东莞涌韵音膜有限公司 | The manufacture craft of the compound ring of liquid |
| CN110267168A (en) * | 2019-06-03 | 2019-09-20 | 国光电器股份有限公司 | A kind of vibrating diaphragm fixing means of loudspeaker and this kind of loudspeaker |
| WO2020258194A1 (en) * | 2019-06-28 | 2020-12-30 | 常州市瑞泰光电有限公司 | Lens module and electronic device |
| WO2021232487A1 (en) * | 2020-05-21 | 2021-11-25 | 瑞声声学科技(深圳)有限公司 | Sound production device and electronic device having same |
| WO2021258410A1 (en) * | 2020-06-22 | 2021-12-30 | 瑞声声学科技(深圳)有限公司 | Voice diaphragm and loudspeaker |
-
2017
- 2017-11-29 CN CN201721630368.1U patent/CN207475845U/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108696806A (en) * | 2018-06-25 | 2018-10-23 | 歌尔股份有限公司 | Loud speaker and portable terminal |
| CN108924709A (en) * | 2018-06-25 | 2018-11-30 | 歌尔股份有限公司 | Microphone device and portable terminal |
| CN108924709B (en) * | 2018-06-25 | 2020-12-08 | 歌尔股份有限公司 | Sound production device and portable terminal |
| CN108696806B (en) * | 2018-06-25 | 2023-11-21 | 歌尔股份有限公司 | Speaker and portable terminal |
| CN109968684A (en) * | 2019-03-13 | 2019-07-05 | 东莞涌韵音膜有限公司 | The manufacture craft of the compound ring of liquid |
| CN110267168A (en) * | 2019-06-03 | 2019-09-20 | 国光电器股份有限公司 | A kind of vibrating diaphragm fixing means of loudspeaker and this kind of loudspeaker |
| CN110267168B (en) * | 2019-06-03 | 2021-06-25 | 国光电器股份有限公司 | Loudspeaker and diaphragm fixing method thereof |
| WO2020258194A1 (en) * | 2019-06-28 | 2020-12-30 | 常州市瑞泰光电有限公司 | Lens module and electronic device |
| WO2021232487A1 (en) * | 2020-05-21 | 2021-11-25 | 瑞声声学科技(深圳)有限公司 | Sound production device and electronic device having same |
| WO2021258410A1 (en) * | 2020-06-22 | 2021-12-30 | 瑞声声学科技(深圳)有限公司 | Voice diaphragm and loudspeaker |
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