CN206835351U - Vibrating diaphragm and the acoustical generator including the vibrating diaphragm - Google Patents

Vibrating diaphragm and the acoustical generator including the vibrating diaphragm Download PDF

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Publication number
CN206835351U
CN206835351U CN201720760609.8U CN201720760609U CN206835351U CN 206835351 U CN206835351 U CN 206835351U CN 201720760609 U CN201720760609 U CN 201720760609U CN 206835351 U CN206835351 U CN 206835351U
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China
Prior art keywords
vibrating diaphragm
central
hierarchic
voice coil
vibrating
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CN201720760609.8U
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董文强
郭晓冬
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Goertek Techology Co Ltd
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Goertek Techology Co Ltd
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Abstract

The utility model discloses a kind of vibrating diaphragm, including vibrating diaphragm body and secure bond in the vibrating diaphragm central portion in vibrating diaphragm body center, the edge of the vibrating diaphragm central portion includes expanding progressive hierarchic structure towards on the outside of vibrating diaphragm, the at least partially embedded vibrating diaphragm body of the hierarchic structure in a thickness direction, the invention also discloses a kind of acoustical generator including the vibrating diaphragm, the utility model at the edge of vibrating diaphragm central portion by setting hierarchic structure, increase the bonded area that vibrating diaphragm central portion is integrally fixed with vibrating diaphragm body, improve the stability and reliability of vibrating diaphragm, extend the service life of acoustical generator.

Description

Vibrating diaphragm and the acoustical generator including the vibrating diaphragm
Technical field
It the utility model is related to electroacoustic switch technology field.More particularly, to a kind of vibrating diaphragm and including the vibrating diaphragm Acoustical generator.
Background technology
Acoustical generator is a kind of device that can convert electrical energy into acoustic energy, belongs to most basic phonation unit, and it extensively should For in the terminal devices such as mobile phone.
As shown in figure 1, acoustical generator include shell and and the vibrational system that is contained in the shell and magnetic circuit system, it is described Vibrational system includes vibrating diaphragm 01 and is incorporated into the voice coil loudspeaker voice coil 02 of the lower section of vibrating diaphragm 01.Vibrating diaphragm 01 includes vibrating diaphragm body 011 and positioned at shaking The vibrating diaphragm central portion 012 in the center of membrane body portion 011.The vibrating diaphragm body 011 include being used for being fixed on fixed part on shell, There is the ring portion of concave or convex structure and the central part positioned at ring portion center with fixed part integrally connected.The vibrating diaphragm Central portion 012 is generally used for carrying out reinforcement to vibrating diaphragm 01, improves vibrating diaphragm 01 on the central part in the center of vibrating diaphragm body 011 Dither performance.But because vibrating diaphragm central portion 012 is different from the material that vibrating diaphragm body 011 uses, shaken in vibrating diaphragm 01 During dynamic, integrally cracking, lamination occurs in the junction of fixed vibrating diaphragm central portion 012 and vibrating diaphragm body 011, directly The stability and reliability that have impact on vibrational system are connect, reduces the service life of acoustical generator.
Accordingly, it is desirable to provide a kind of new diaphragm structure, cracking, the lamination of vibrating diaphragm are reduced, improves the stabilization of vibrating diaphragm Property and reliability, and then improve acoustical generator service life.
Utility model content
A purpose of the present utility model is to provide a kind of vibrating diaphragm, and another purpose of the present utility model is to provide one Kind includes the acoustical generator of the vibrating diaphragm, reduces cracking, the lamination of vibrating diaphragm, the stability and reliability of vibrating diaphragm is improved, so as to carry The service life of high acoustical generator.
To reach above-mentioned purpose, the utility model uses following technical proposals:
The utility model discloses a kind of vibrating diaphragm, including vibrating diaphragm body and secure bond are in vibrating diaphragm body center Vibrating diaphragm central portion,
The edge of the vibrating diaphragm central portion includes expanding progressive hierarchic structure towards on the outside of vibrating diaphragm, and the hierarchic structure exists At least partially embedded vibrating diaphragm body on thickness direction.
Preferably, the vibrating diaphragm central portion is plane or top dome type.
Preferably, the vibrating diaphragm central part in vibrating diaphragm body close to the side of voice coil loudspeaker voice coil.
Preferably, the vibrating diaphragm central part deviates from the side of voice coil loudspeaker voice coil in vibrating diaphragm body.
Preferably, the vibrating diaphragm central portion is circular, rectangle or racetrack.
Preferably, the hierarchic structure is the continuous closing structure positioned at the vibrating diaphragm central portion edge or symmetrical point Segment structure.
Preferably, the hierarchic structure is connected or is wholely set with the edge of the vibrating diaphragm central portion.
Preferably, the vibrating diaphragm central portion passes through gluing fixation or integrated injection molding with the vibrating diaphragm body.
Preferably, the central hollow out of the vibrating diaphragm body, hollow out edge are located at the vibrating diaphragm central portion hierarchic structure Inner side.
The invention also discloses a kind of acoustical generator, including vibrational system, the vibrational system includes as described above Vibrating diaphragm and the voice coil loudspeaker voice coil combined with the vibrating diaphragm.
The beneficial effects of the utility model are as follows:
According to vibrating diaphragm of the present utility model, the edge of vibrating diaphragm central portion includes expanding progressive ladder knot towards on the outside of vibrating diaphragm Structure, at least partially embedded vibrating diaphragm body of the hierarchic structure in a thickness direction, can be to vibrating diaphragm body and vibrating diaphragm The faying face of central portion carries out gluing or vibrating diaphragm body and vibrating diaphragm central portion integrated injection molding is formed into vibrating diaphragm.Vibrating diaphragm central portion side The hierarchic structure of edge includes multiple steps, can further provide for multiple horizontal surfaces being bonded with vibrating diaphragm body and vertical table Face, it can effectively increase the bonded area that vibrating diaphragm central portion is fixed with vibrating diaphragm body, increase vibrating diaphragm central portion and vibrating diaphragm body The adhesion in portion, make vibrating diaphragm as the extension of time of vibration is less prone to division, lamination, improve stability of vibration system and Reliability, and then improve the service life of acoustical generator.
Brief 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 the schematic diagram of vibrating diaphragm in the prior art;
Fig. 2 is shown according to the utility model vibrating diaphragm and the schematic diagram of the embodiment one of the acoustical generator including the vibrating diaphragm;
Fig. 3 shows the enlarged drawing of a-quadrant in Fig. 2;
Fig. 4 is shown according to the utility model vibrating diaphragm and the schematic diagram of the embodiment two of the acoustical generator including the vibrating diaphragm;
Fig. 5 is shown according to the utility model vibrating diaphragm and a kind of three structure of embodiment of the acoustical generator including the vibrating diaphragm is shown It is intended to;
Fig. 6 is shown according to the utility model vibrating diaphragm and the three another structure of embodiment of the acoustical generator including the vibrating diaphragm Schematic diagram;
Reference:
01st, vibrating diaphragm, 02, voice coil loudspeaker voice coil, 011, vibrating diaphragm body, 012, vibrating diaphragm central portion;
11st, vibrating diaphragm, 12, voice coil loudspeaker voice coil, 111, vibrating diaphragm body, 112, vibrating diaphragm central portion, 113, hierarchic structure, 114, fixed Portion, 115, ring portion, 116, central part;
22nd, voice coil loudspeaker voice coil, 211, vibrating diaphragm body, 212, vibrating diaphragm central portion, 213, hierarchic structure;
311st, vibrating diaphragm body, 312, vibrating diaphragm central portion, 313, hierarchic structure, 314, hollow out.
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 part is indicated with identical reference in accompanying 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.
Embodiment one
Fig. 2 shows the schematic diagram according to the utility model embodiment one, and in the present embodiment, vibrating diaphragm 11 includes vibrating diaphragm body The 111 vibrating diaphragm central portions 112 central with the vibrating diaphragm body 111 is fixed on.The vibrating diaphragm body 111 includes being used to fix The fixed part 114 of vibrating diaphragm, the ring portion 114 being connected with the fixed part 114 and the central part positioned at the center of ring portion 114 116.The vibrating diaphragm it is lower can stationary tone circle, in the present embodiment, the vibrating diaphragm central portion 112 is incorporated in vibrating diaphragm body 111 Central part 116 is close to the side of voice coil loudspeaker voice coil.Voice coil loudspeaker voice coil can be fixed on the central part 116 of vibrating diaphragm body 111, be incorporated in central part 116 On the vibrating diaphragm central portion 112 or central part 116 of lower section and the join domain in ring portion 114.
In the present embodiment, the edge of vibrating diaphragm central portion 112 is to expand progressive hierarchic structure 113 towards the outside of vibrating diaphragm 11, The thickness direction of hierarchic structure 113 has fully embedded into the vibrating diaphragm body 111.As shown in figure 3, the hierarchic structure 113 Including multi-stage stairs, so as to provide multiple horizontal surfaces being bonded with vibrating diaphragm body 111 and vertical surface, can effectively increase Big vibrating diaphragm central portion 112 is combined the bonded area of fixation with vibrating diaphragm body 111, so as to increase vibrating diaphragm central portion 112 and vibrating diaphragm The adhesion that body 111 is fixed, makes vibrating diaphragm 11 be less prone to division, lamination with the extension of time of vibration, raising is shaken The dynamic stability of a system and reliability, and then improve the service life of acoustical generator.
In the present embodiment, vibrating diaphragm central portion 112 passes through in vibrating diaphragm central portion 112 and vibrating diaphragm body with vibrating diaphragm body 111 The surface coating that portion 111 contacts is adhesively fixed, and the contact surface includes vibrating diaphragm central portion 112 and vibrating diaphragm body 111 Horizontal plane and vertical plane at the central plane region of fitting and hierarchic structure 113.In order to mitigate process complexity, in vibrating diaphragm Centre portion 112 can also pass through injection moulding integrated molding with vibrating diaphragm body 111.
In the present embodiment, positioned at the edge of vibrating diaphragm central portion 112 hierarchic structure 113 be from the side of vibrating diaphragm central portion 112 to Outside extends to be formed, and in practical application, the hierarchic structure 113 is fixedly connected with vibrating diaphragm central portion 112 again after also being first molded.
To increase the bonded area of vibrating diaphragm central portion 112 and vibrating diaphragm body 111 as far as possible, lifting combines effect, vibrating diaphragm The lower surface of central portion 112 is preferably without departing from the lower surface of the vibrating diaphragm body 111, in the present embodiment, vibrating diaphragm central portion 112 lower surface is in same level with the lower surface of vibrating diaphragm body 111.Certainly in actual applications, due to vibrating diaphragm sheet The thickness limitation of the central part 116 in the center of body portion 111, the vibrating diaphragm central portion 112 also can partly protrude vibrating diaphragm body 111 Lower surface.
In the present embodiment, vibrating diaphragm central portion 112 is plane, the difference for the acoustical generator type applied according to vibrating diaphragm, also may be used Using structures such as sphericals.
In the present embodiment, the edge of vibrating diaphragm central portion 112 is rectangle, and hierarchic structure 113 is to be distributed in vibrating diaphragm central portion 112 The continuous closing structure of rectangular edges, similar, the hierarchic structure 113 is applied equally to the shapes such as circular or racetrack Vibrating diaphragm central portion 112.
The material of vibrating diaphragm central portion 112 in the present embodiment and structure with it is similar in the prior art, will not be repeated here.
The present embodiment also discloses a kind of acoustical generator, and the acoustical generator includes vibrational system, and the vibrational system is included such as this Vibrating diaphragm described in embodiment and the voice coil loudspeaker voice coil being fixed on below the vibrating diaphragm.In the present embodiment, voice coil loudspeaker voice coil is fixed on vibrating diaphragm central portion 112 Surface.
Embodiment two
Fig. 4 shows the schematic diagram according to the utility model embodiment two, and the present embodiment and the difference of embodiment one are, this Vibrating diaphragm central portion 212 is incorporated in vibrating diaphragm body 211 away from the side of voice coil loudspeaker voice coil 22 in embodiment, that is, is fixed on vibrating diaphragm body The upside of 211 central parts, and voice coil loudspeaker voice coil 22 can be directly anchored on the downside surface of the central part of vibrating diaphragm body 211.
The hierarchic structure 213 of vibrating diaphragm central portion 212 to expand progressive hierarchic structure 213 upwards, vibrating diaphragm body 211 with Vibrating diaphragm central portion 212 with reference to binding face formed with 212 corresponding profile of vibrating diaphragm central portion.
The upper surface of vibrating diaphragm central portion 212 is in same horizontal line with the upper surface of vibrating diaphragm body 211, to ensure to shake Film central portion 212 has big bonded area with vibrating diaphragm body 211, and lifting combines effect.
Embodiment three
Fig. 5 and Fig. 6 shows the schematic diagram of two kinds of structures according to the utility model embodiment three, the present embodiment and embodiment One or the difference of embodiment two be that the present embodiment improves diaphragm oscillations performance, by vibrating diaphragm body to mitigate vibrating diaphragm weight 311 central hollow out.The edge of hollow out 314 of vibrating diaphragm body 311 is located at the ladder knot of vibrating diaphragm central portion 312 of fixation in connection The inner side of structure 313, ensure that the area of hollow out 314 is less than the plane domain area with its vibrating diaphragm central portion 312 being bonded, so as to vibrating diaphragm The hierarchic structure 313 of central portion 312 is embedded in the non-void region of vibrating diaphragm central portion 312, to ensure the air-tightness of vibrating diaphragm.
Example IV
The present embodiment and the difference of embodiment one, embodiment two or embodiment three be, vibrating diaphragm central portion in the present embodiment Hierarchic structure be the segmental structure being arranged on the multiple sections in vibrating diaphragm central portion edge.
For ease of shaping, the hierarchic structure of segmentation can be symmetrically distributed in the long side of vibrating diaphragm central portion rectangular edges and/or short Bian Shang, four corners of vibrating diaphragm central portion are further can be distributed in, are easily opened with reducing vibrating diaphragm caused by corner portion stress concentration Split, lamination.In actual applications, vibrating diaphragm central portion and the concrete structure of hierarchic structure are also not limited to several realities of the above Apply mode.
Obviously, above-described embodiment of the present utility model is only intended to clearly illustrate the utility model example, and It is not the restriction to embodiment of the present utility model, for those of ordinary skill in the field, in described above On the basis of can also make other changes in different forms, 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 of the present utility model The row of protection domain.

Claims (10)

1. a kind of vibrating diaphragm, including vibrating diaphragm body and secure bond, in the vibrating diaphragm central portion in vibrating diaphragm body center, it is special Sign is,
The edge of the vibrating diaphragm central portion includes expanding progressive hierarchic structure towards on the outside of vibrating diaphragm, and the hierarchic structure is in thickness At least partially embedded vibrating diaphragm body on direction.
2. a kind of vibrating diaphragm according to claim 1, it is characterised in that the vibrating diaphragm central portion is plane or top dome type.
3. a kind of vibrating diaphragm according to claim 1, it is characterised in that the vibrating diaphragm central part is close in vibrating diaphragm body The side of voice coil loudspeaker voice coil.
4. a kind of vibrating diaphragm according to claim 1, it is characterised in that the vibrating diaphragm central part deviates from vibrating diaphragm body The side of voice coil loudspeaker voice coil.
5. a kind of vibrating diaphragm according to claim 1, it is characterised in that the vibrating diaphragm central portion is circular, rectangle or runway Type.
6. a kind of vibrating diaphragm according to claim 1, it is characterised in that the hierarchic structure is positioned at the vibrating diaphragm central portion The continuous closing structure or symmetrical segmental structure at edge.
7. a kind of vibrating diaphragm according to claim 1, it is characterised in that the hierarchic structure and the side of the vibrating diaphragm central portion Edge is connected or is wholely set.
8. a kind of vibrating diaphragm according to claim 1, it is characterised in that the vibrating diaphragm central portion leads to the vibrating diaphragm body Cross gluing fixation or integrated injection molding.
9. according to a kind of vibrating diaphragm described in claim 1-8 any claims, it is characterised in that in the vibrating diaphragm body Hollow out is entreated, hollow out edge is located at the inner side of the vibrating diaphragm central portion hierarchic structure.
10. a kind of acoustical generator, it is characterised in that including vibrational system, the vibrational system includes such as any power of claim 1-9 Profit requires described vibrating diaphragm and the voice coil loudspeaker voice coil combined with the vibrating diaphragm.
CN201720760609.8U 2017-06-27 2017-06-27 Vibrating diaphragm and the acoustical generator including the vibrating diaphragm Active CN206835351U (en)

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CN201720760609.8U CN206835351U (en) 2017-06-27 2017-06-27 Vibrating diaphragm and the acoustical generator including the vibrating diaphragm

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CN201720760609.8U CN206835351U (en) 2017-06-27 2017-06-27 Vibrating diaphragm and the acoustical generator including the vibrating diaphragm

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110913314A (en) * 2019-11-29 2020-03-24 江苏裕成电子有限公司 High-bubble embedded sound film and loudspeaker

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110913314A (en) * 2019-11-29 2020-03-24 江苏裕成电子有限公司 High-bubble embedded sound film and loudspeaker

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